i need help in calculating this problem please , thank you .

Exercise 5-7 Target Profit Analysis (LO5-6) Lin Corporation has a single product whose selling price is $135 per unit and whose variable expense is $81 per unit. The company's monthly fixed expense is $24,300. Required: 1. Calculate the unit sales needed to attain a target profit of $4,050. (Do not round intermediate calculations.) 2. Calculate the dollar sales needed to attain a target profit of $8,300. (Round your intermediate calculations to the nearest whole number.) 1 Units sales to attain target profit 2. Dollar sales to attain target profit