function formatNumber(number) {
      number = String(number).split('.');
      return number[0].replace(/(?=(?:\d{3})+$)(?!\b)/g, ',') +
        (number[1] ? '.' + number[1] : '');
    }
Converts a number to a more readable comma-separated string representation.

@static
@memberOf Benchmark
@param {number} number The number to convert.
@returns {string} The more readable string representation.