diff --git a/lib/plugins.js b/lib/plugins.js
index 1f8cd51b..c08ba46f 100644
--- a/lib/plugins.js
+++ b/lib/plugins.js
@@ -599,7 +599,7 @@ function plugins (settings, deviceId) {
       }
       : null
 
-    const cassette1Alert = cashOutEnabled && device.cassette1 < notifications.fiatBalanceCassette1
+    const cassette1Alert = cashOutEnabled && (device.cassette1 / 500) < notifications.fillingPercentageCassette1
       ? {
         code: 'LOW_CASH_OUT',
         cassette: 1,
@@ -611,7 +611,7 @@ function plugins (settings, deviceId) {
       }
       : null
 
-    const cassette2Alert = cashOutEnabled && device.cassette2 < notifications.fiatBalanceCassette2
+    const cassette2Alert = cashOutEnabled && (device.cassette2 / 500) < notifications.fillingPercentageCassette2
       ? {
         code: 'LOW_CASH_OUT',
         cassette: 2,
diff --git a/migrations/1619968992683-fiat-balance-notification-to-percent.js b/migrations/1619968992683-fiat-balance-notification-to-percent.js
new file mode 100644
index 00000000..ea9a7afa
--- /dev/null
+++ b/migrations/1619968992683-fiat-balance-notification-to-percent.js
@@ -0,0 +1,52 @@
+const _ = require('lodash/fp')
+const { saveConfig, loadLatest } = require('../lib/new-settings-loader')
+
+exports.up = function (next) {
+  loadLatest()
+    .then(({ config }) => {
+      const fiatBalance1 = config.notifications_fiatBalanceCassette1
+      const fiatBalance2 = config.notifications_fiatBalanceCassette2
+
+      if (fiatBalance1) {
+        config.notifications_fiatBalanceCassette1 = (100 * (fiatBalance1 / 500)).toFixed(0)
+      }
+      if (fiatBalance2) {
+        config.notifications_fiatBalanceCassette2 = (100 * (fiatBalance2 / 500)).toFixed(0)
+      }
+
+      const {
+        notifications_fiatBalanceCassette1: notifications_fillingPercentageCassette1,
+        notifications_fiatBalanceCassette2: notifications_fillingPercentageCassette2,
+        ...rest
+      } = config
+
+      config = { notifications_fillingPercentageCassette1, notifications_fillingPercentageCassette2, ...rest }
+
+      config.notifications_fiatBalanceOverrides = _.map(override => {
+        if (override.fiatBalanceCassette1) {
+          override.fiatBalanceCassette1 = (100 * (override.fiatBalanceCassette1 / 500)).toFixed(0)
+        }
+        if (override.fiatBalanceCassette2) {
+          override.fiatBalanceCassette2 = (100 * (override.fiatBalanceCassette2 / 500)).toFixed(0)
+        }
+        const {
+          fiatBalanceCassette1: fillingPercentageCassette1,
+          fiatBalanceCassette2: fillingPercentageCassette2,
+          ...rest } = override
+        return { fillingPercentageCassette1, fillingPercentageCassette2, ...rest }
+      }, config.notifications_fiatBalanceOverrides)
+
+      return saveConfig(config)
+        .then(() => next())
+    })
+    .catch(err => {
+      if (err.message === 'lamassu-server is not configured') {
+        return next()
+      }
+      console.log(err.message)
+      return next(err)
+    })
+}
+module.exports.down = function (next) {
+  next()
+}
diff --git a/new-lamassu-admin/src/components/inputs/cashbox/Cashbox.js b/new-lamassu-admin/src/components/inputs/cashbox/Cashbox.js
index 52cb5d25..13123963 100644
--- a/new-lamassu-admin/src/components/inputs/cashbox/Cashbox.js
+++ b/new-lamassu-admin/src/components/inputs/cashbox/Cashbox.js
@@ -18,20 +18,26 @@ const Cashbox = ({
   cashOut = false,
   className,
   emptyPartClassName,
-  labelClassName
+  labelClassName,
+  inFiatBalanceAlerts
 }) => {
   const classes = cashboxClasses({ percent, cashOut })
   const threshold = 51
 
   return (
-    <div className={classnames(className, classes.cashbox)}>
+    <div
+      className={
+        inFiatBalanceAlerts
+          ? classnames(className, classes.fiatBalanceAlertCashbox)
+          : classnames(className, classes.cashbox)
+      }>
       <div className={classnames(emptyPartClassName, classes.emptyPart)}>
-        {percent <= threshold && (
+        {!inFiatBalanceAlerts && percent <= threshold && (
           <Label2 className={labelClassName}>{percent.toFixed(0)}%</Label2>
         )}
       </div>
       <div className={classes.fullPart}>
-        {percent > threshold && (
+        {!inFiatBalanceAlerts && percent > threshold && (
           <Label2 className={labelClassName}>{percent.toFixed(0)}%</Label2>
         )}
       </div>
diff --git a/new-lamassu-admin/src/components/inputs/cashbox/Cashbox.styles.js b/new-lamassu-admin/src/components/inputs/cashbox/Cashbox.styles.js
index 9c8e2633..e239489b 100644
--- a/new-lamassu-admin/src/components/inputs/cashbox/Cashbox.styles.js
+++ b/new-lamassu-admin/src/components/inputs/cashbox/Cashbox.styles.js
@@ -24,6 +24,13 @@ const cashboxStyles = {
     textAlign: 'end',
     display: 'inline-block'
   },
+  fiatBalanceAlertCashbox: {
+    borderColor: colorPicker,
+    backgroundColor: colorPicker,
+    height: 118,
+    width: 80,
+    border: '4px solid'
+  },
   emptyPart: {
     backgroundColor: 'white',
     height: ({ percent }) => `${100 - percent}%`,
diff --git a/new-lamassu-admin/src/pages/Notifications/Notifications.js b/new-lamassu-admin/src/pages/Notifications/Notifications.js
index 21e1b1a3..fdeaef97 100644
--- a/new-lamassu-admin/src/pages/Notifications/Notifications.js
+++ b/new-lamassu-admin/src/pages/Notifications/Notifications.js
@@ -116,7 +116,7 @@ const Notifications = ({
         <Section
           title="Fiat balance alerts"
           error={error && section === 'fiat'}>
-          <FiatBalanceAlerts section="fiat" max={500} fieldWidth={50} />
+          <FiatBalanceAlerts section="fiat" max={100} fieldWidth={50} />
           {displayOverrides && <FiatBalanceOverrides section="fiat" />}
         </Section>
       )}
diff --git a/new-lamassu-admin/src/pages/Notifications/sections/FiatBalanceAlerts.js b/new-lamassu-admin/src/pages/Notifications/sections/FiatBalanceAlerts.js
index 23d5e1e6..de318f11 100644
--- a/new-lamassu-admin/src/pages/Notifications/sections/FiatBalanceAlerts.js
+++ b/new-lamassu-admin/src/pages/Notifications/sections/FiatBalanceAlerts.js
@@ -18,12 +18,7 @@ const useStyles = makeStyles(styles)
 
 const NAME = 'fiatBalanceAlerts'
 
-const FiatBalance = ({
-  section,
-  min = 0,
-  max = Number.MAX_SAFE_INTEGER,
-  fieldWidth = 80
-}) => {
+const FiatBalance = ({ section, min = 0, max = 100, fieldWidth = 80 }) => {
   const { isEditing, isDisabled, setEditing, data, save } = useContext(
     NotificationsCtx
   )
@@ -32,13 +27,13 @@ const FiatBalance = ({
   const editing = isEditing(NAME)
 
   const schema = Yup.object().shape({
-    fiatBalanceCassette1: Yup.number()
+    fillingPercentageCassette1: Yup.number()
       .transform(transformNumber)
       .integer()
       .min(min)
       .max(max)
       .nullable(),
-    fiatBalanceCassette2: Yup.number()
+    fillingPercentageCassette2: Yup.number()
       .transform(transformNumber)
       .integer()
       .min(min)
@@ -46,19 +41,14 @@ const FiatBalance = ({
       .nullable()
   })
 
-  const fiatBalanceCassette1Percent =
-    (100 * (data?.fiatBalanceCassette1 ?? 0)) / max
-  const fiatBalanceCassette2Percent =
-    (100 * (data?.fiatBalanceCassette2 ?? 0)) / max
-
   return (
     <Formik
       validateOnBlur={false}
       validateOnChange={false}
       enableReinitialize
       initialValues={{
-        fiatBalanceCassette1: data?.fiatBalanceCassette1 ?? '',
-        fiatBalanceCassette2: data?.fiatBalanceCassette2 ?? ''
+        fillingPercentageCassette1: data?.fillingPercentageCassette1 ?? '',
+        fillingPercentageCassette2: data?.fillingPercentageCassette2 ?? ''
       }}
       validationSchema={schema}
       onSubmit={it => save(section, schema.cast(it))}
@@ -79,17 +69,18 @@ const FiatBalance = ({
               <Cashbox
                 labelClassName={classes.cashboxLabel}
                 emptyPartClassName={classes.cashboxEmptyPart}
-                percent={fiatBalanceCassette1Percent}
+                percent={data?.fillingPercentageCassette1}
+                inFiatBalanceAlerts={true}
                 cashOut
               />
               <div className={classes.col2}>
                 <TL2 className={classes.title}>Cassette 1 (Top)</TL2>
                 <EditableNumber
                   label="Alert me under"
-                  name="fiatBalanceCassette1"
+                  name="fillingPercentageCassette1"
                   editing={editing}
                   displayValue={x => (x === '' ? '-' : x)}
-                  decoration="notes"
+                  decoration="%"
                   width={fieldWidth}
                 />
               </div>
@@ -99,17 +90,18 @@ const FiatBalance = ({
             <Cashbox
               labelClassName={classes.cashboxLabel}
               emptyPartClassName={classes.cashboxEmptyPart}
-              percent={fiatBalanceCassette2Percent}
+              percent={data?.fillingPercentageCassette2}
+              inFiatBalanceAlerts={true}
               cashOut
             />
             <div className={classes.col2}>
               <TL2 className={classes.title}>Cassette 2 (Bottom)</TL2>
               <EditableNumber
                 label="Alert me under"
-                name="fiatBalanceCassette2"
+                name="fillingPercentageCassette2"
                 editing={editing}
                 displayValue={x => (x === '' ? '-' : x)}
-                decoration="notes"
+                decoration="%"
                 width={fieldWidth}
               />
             </div>
diff --git a/new-lamassu-admin/src/pages/Notifications/sections/FiatBalanceOverrides.js b/new-lamassu-admin/src/pages/Notifications/sections/FiatBalanceOverrides.js
index a8887597..94d3eeff 100644
--- a/new-lamassu-admin/src/pages/Notifications/sections/FiatBalanceOverrides.js
+++ b/new-lamassu-admin/src/pages/Notifications/sections/FiatBalanceOverrides.js
@@ -9,8 +9,8 @@ import { transformNumber } from 'src/utils/number'
 
 import NotificationsCtx from '../NotificationsContext'
 
-const CASSETTE_1_KEY = 'fiatBalanceCassette1'
-const CASSETTE_2_KEY = 'fiatBalanceCassette2'
+const CASSETTE_1_KEY = 'fillingPercentageCassette1'
+const CASSETTE_2_KEY = 'fillingPercentageCassette2'
 const MACHINE_KEY = 'machine'
 const NAME = 'fiatBalanceOverrides'
 
@@ -44,8 +44,8 @@ const FiatBalanceOverrides = ({ section }) => {
     [CASSETTE_2_KEY]: ''
   }
 
-  const notesMin = 0
-  const notesMax = 9999999
+  const percentMin = 0
+  const percentMax = 100
   const validationSchema = Yup.object().shape(
     {
       [MACHINE_KEY]: Yup.string()
@@ -60,8 +60,8 @@ const FiatBalanceOverrides = ({ section }) => {
         })
         .transform(transformNumber)
         .integer()
-        .min(notesMin)
-        .max(notesMax)
+        .min(percentMin)
+        .max(percentMax)
         .nullable(),
       [CASSETTE_2_KEY]: Yup.number()
         .label('Cassette 2 (bottom)')
@@ -71,8 +71,8 @@ const FiatBalanceOverrides = ({ section }) => {
         })
         .transform(transformNumber)
         .integer()
-        .min(notesMin)
-        .max(notesMax)
+        .min(percentMin)
+        .max(percentMax)
         .nullable()
     },
     [CASSETTE_1_KEY, CASSETTE_2_KEY]
@@ -102,7 +102,7 @@ const FiatBalanceOverrides = ({ section }) => {
       doubleHeader: 'Cash-out (Cassette Empty)',
       bold: true,
       input: NumberInput,
-      suffix: 'notes',
+      suffix: '%',
       inputProps: {
         decimalPlaces: 0
       }
@@ -115,7 +115,7 @@ const FiatBalanceOverrides = ({ section }) => {
       doubleHeader: 'Cash-out (Cassette Empty)',
       bold: true,
       input: NumberInput,
-      suffix: 'notes',
+      suffix: '%',
       inputProps: {
         decimalPlaces: 0
       }