lib/Formatters.js
function makePercent(formatter) {
  return function percentWrapped(value) {
    if (value != null) {
      return formatter(value * 100) + '%';
    }

    return formatter(value);
  };
}
function makePercent(formatter) {
  return function percentWrapped(value) {
    if (value != null) {
      return formatter(value * 100) + '%';
    }

    return formatter(value);
  };
}
function makePercent ( formatter ) { return function percentWrapped ( value ) { if ( value != null ) { return formatter ( value * 100 ) + '%' ; } return formatter ( value ) ; } ; }
Wraps a formatting function by multiplying the value by 100 and
adds a % to the end.

@param {Function} formatter formatter function
@return {Function} a formatter function
Wraps a formatting function by multiplying the value by 100 and adds a % to the end .