Big Number Viz: (#20946)

- When the value is zero we still render the percent change and suffix if present

Author: Antonio-RiveroMartnez

superset-frontend/plugins/plugin-chart-echarts/src/BigNumber/BigNumberWithTrendline/transformProps.ts

@@ -125,8 +125,10 @@ export default function transformProps(
       if (compareIndex < sortedData.length) {
         const compareValue = sortedData[compareIndex][1];
         // compare values must both be non-nulls
-        if (bigNumber !== null && compareValue !== null && compareValue !== 0) {
-          percentChange = (bigNumber - compareValue) / Math.abs(compareValue);
+        if (bigNumber !== null && compareValue !== null) {
+          percentChange = compareValue
+            ? (bigNumber - compareValue) / Math.abs(compareValue)
+            : 0;
           formattedSubheader = `${formatPercentChange(
             percentChange,
           )} ${compareSuffix}`;