Enter your hourly pay rate. If the pay rate changes, you should enter a weighted-average rate. For example, if you earn $15 an hour for the first 40 hours and $22.50 an hour for 10 additional hours (an overtime-pay rate of 1-1/2 times the regular rate), the weighted-average rate is $16.50. In this case, you would enter 50 hours in the next input field.