diff --git a/plugins/woocommerce-admin/client/lib/number/index.js b/plugins/woocommerce-admin/client/lib/number/index.js
index cee7f742120..1cc17027cbe 100644
--- a/plugins/woocommerce-admin/client/lib/number/index.js
+++ b/plugins/woocommerce-admin/client/lib/number/index.js
@@ -8,7 +8,7 @@ const number_format = require( 'locutus/php/strings/number_format' );
 /**
  * Formats a number using site's current locale
  *
- * @see https://locutus.io/php/strings/number_format/
+ * @see http://locutus.io/php/strings/number_format/
  * @param {Number|String} number number to format
  * @param {int|null} [precision=null] optional decimal precision
  * @returns {?String} A formatted string.
@@ -25,21 +25,11 @@ export function numberFormat( number, precision = null ) {
 
 	const decimalSeparator = get( wcSettings, [ 'currency', 'decimal_separator' ], '.' );
 	const thousandSeparator = get( wcSettings, [ 'currency', 'thousand_separator' ], ',' );
+	precision = parseInt( precision );
 
-	if ( null === precision ) {
-		const [ numberNoDecimals, decimals ] = number.toString().split( '.' );
-		const formattedNumber = number_format(
-			numberNoDecimals,
-			0,
-			decimalSeparator,
-			thousandSeparator
-		);
-
-		if ( decimals ) {
-			return formattedNumber + decimalSeparator + decimals;
-		}
-
-		return formattedNumber;
+	if ( isNaN( precision ) ) {
+		const [ , decimals ] = number.toString().split( '.' );
+		precision = decimals ? decimals.length : 0;
 	}
 
 	return number_format( number, precision, decimalSeparator, thousandSeparator );