The take-home pay actually received under the two wage rates was not substantially the same unless a full 84-hour seven-day week was worked, and the evidence shows that frequently the full week was not worked. Defendant’s witness Potts testified that he and many others did not work full weeks after the rate change; neither did plaintiffs, as is clear from the records of their time and overtime. The following table illustrates the wages that were actually paid under the two systems for various work weeks. 92Y¡ cents per hr. with no overtime 70 cents per hr. with overtime and doubletime Forty hours, five days $37.00 $28.00 Forty-eight hours, six days 44.40 36.40 Seventy-two hours, six days 66.60 61.60 Eighty-four hours, seven days 77.70 78.40