We have 38 hours for M-F and then we can use 2 hours from Sat to make 40
40 * 16.21 = 648.4
Then there are 6-2 = 4 hours left on Saturday that are time and a half
16.21 * 1.5 =24.315
4 * 24.315 = 97.26
There are 6 hours on Sunday which is double time
6 * 16.21*2 = 194.52
Adding this together
648.4+97.26+194.52 =940.18