Hi, I need help with these exercises. Please provide a detail explanation step by step.

E3-3 Modified wage plan Randy Wetzel earns $25 per hour for up to 400 units of production per day. If he produces more than 400 units per day, he will receive an additional piece rate of $.50 per unit. Assume that his hours worked and pieces finished for the week just ended were as follows:

Day Hours Worked Pieces Finished Monday 8 400 Tuesday 380 Wednesday 440 Thursday 450 Friday 360 a. Determine Wetzel's earnings for each day and for the week. b. Prepare the journal entry to distribute the payroll, assuming that any make-up guarantees are charged to Factory Overhead