diff --git a/source/components/PercentageField.js b/source/components/PercentageField.js
index 11ffb8721..0418a49ff 100644
--- a/source/components/PercentageField.js
+++ b/source/components/PercentageField.js
@@ -26,7 +26,7 @@ export default function PercentageField({ onChange, value, debounce }) {
 				max="1"
 			/>
 			<span style={{ display: 'inline-block', width: '3em' }}>
-				{formatPercentage(localValue)}
+				{formatPercentage(localValue)} %
 			</span>
 		</div>
 	)
diff --git a/source/engine/format.js b/source/engine/format.js
index 75c8ff258..9e2c7d9c5 100644
--- a/source/engine/format.js
+++ b/source/engine/format.js
@@ -19,6 +19,12 @@ export let numberFormatter = ({
 		minimumFractionDigits
 	}).format(value)
 
+export const formatCurrency = (value, language) => {
+	return value == null
+		? ''
+		: numberFormatter({ language })(value).replace(/^(-)?€/, '$1€\u00A0')
+}
+
 export const currencyFormat = language => ({
 	isCurrencyPrefixed: !!numberFormatter({ language, style: 'currency' })(
 		12
@@ -27,16 +33,34 @@ export const currencyFormat = language => ({
 	decimalSeparator: formatCurrency(0.1, language).charAt(1)
 })
 
-export const formatCurrency = (value, language) => {
-	return value == null
-		? ''
-		: formatValue({ unit: '€', language, value }).replace(/^(-)?€/, '$1€\u00A0')
-}
+const sanitizeValue = language => value =>
+	language === 'fr' ? String(value).replace(',', '.') : value
 
-export const formatPercentage = value =>
-	value == null
-		? ''
-		: formatValue({ unit: '%', value, maximumFractionDigits: 2 })
+export const formatPercentage = value => +(value * 100).toFixed(2)
+export const normalizePercentage = value => value / 100
+
+export const getFormatersFromUnit = (unit, language = 'en') => {
+	const serializedUnit = typeof unit == 'object' ? serialiseUnit(unit) : unit
+	const sanitize = sanitizeValue(language)
+	switch (serializedUnit) {
+		case '%':
+			return {
+				format: v =>
+					numberFormatter({ style: 'percent', language })(v)
+						.replace('%', '')
+						.trim(),
+				normalize: v => normalizePercentage(sanitize(v))
+			}
+		default:
+			return {
+				format: x =>
+					Number(x)
+						? numberFormatter({ style: 'decimal', language })(Number(x))
+						: x,
+				normalize: x => sanitize(x)
+			}
+	}
+}
 
 export function formatValue({
 	maximumFractionDigits,
@@ -45,9 +69,6 @@ export function formatValue({
 	unit,
 	value
 }) {
-	if (typeof value !== 'number') {
-		return value
-	}
 	const serializedUnit = typeof unit == 'object' ? serialiseUnit(unit) : unit
 
 	switch (serializedUnit) {
@@ -61,6 +82,9 @@ export function formatValue({
 		case '%':
 			return numberFormatter({ style: 'percent', maximumFractionDigits })(value)
 		default:
+			if (typeof value !== 'number') {
+				return value
+			}
 			return (
 				numberFormatter({
 					style: 'decimal',
diff --git a/source/engine/mecanismViews/BarèmeContinu.js b/source/engine/mecanismViews/BarèmeContinu.js
index 19d17d243..e803e9c25 100644
--- a/source/engine/mecanismViews/BarèmeContinu.js
+++ b/source/engine/mecanismViews/BarèmeContinu.js
@@ -1,11 +1,11 @@
 import { ShowValuesConsumer } from 'Components/rule/ShowValuesContext'
-import { formatPercentage } from 'Engine/format'
 import { sortObjectByKeys } from 'Engine/mecanismViews/common'
 import React from 'react'
 import { Trans } from 'react-i18next'
 import { BarèmeAttributes } from './Barème'
 import './Barème.css'
 import { Node } from './common'
+import { formatPercentage } from 'Engine/format'
 
 let Comp = function Barème({ nodeValue, explanation, unit }) {
 	return (
@@ -44,7 +44,7 @@ let Comp = function Barème({ nodeValue, explanation, unit }) {
 									<b>
 										<Trans>Votre taux </Trans> :{' '}
 									</b>
-									{formatPercentage(explanation.taux)}
+									{formatPercentage(explanation.taux)} %
 								</span>
 							)}
 							{explanation.returnRate && (