Part a. Can you help me step by step.

Current Attempt in Progress On January 1. 2022. Carla Vista Company began a warranty program to stimulate sales. It is estimated that 5% of the units sold will be returned for repair at an estimated cost of $36 per unit. Sales and warranty figures for the three years ended December 31 are as follows: (a) Calculate the warranity expense for each year and warranty liability at the end of each year