otterscan/src/components/formatter.ts

import { BigNumber } from "@ethersproject/bignumber";
import { commify, formatUnits } from "@ethersproject/units";

export const formatValue = (value: BigNumber, decimals: number): string => {
  const formatted = commify(formatUnits(value, decimals));
  return formatted.endsWith(".0")
    ? formatted.slice(0, formatted.length - 2)
    : formatted;
};