If you want to set up a spreadsheet, the formulas are pretty simple:

Salary / 52 = weekly pay (approx, there's a few extra days in the year but my bi-weekly pay is salary / 26, which actually works out to a slightly higher pay than if they did it by extact days)

Weekly pay / 40 = hourly equivalent (or 37.5 if you want to assume unpaid lunches, which effectively increases your hourly rate)

Hourly equivalent / 60 = minute equivalent

Time in minutes pooping * hourly equivalent = money earned pooping

For hourly pay, just drop that in to the hourly equivalent variable above.