I am stuck on these two, please let me know if i missing info, and tell me what i missing. thx

4. Refer to part 3 and now assume that the tax rate is 30%. How many units would need to be sold each month to an after-tax target profit of $31,200? (Round the nal answer to the nearest whole number.) Unit sales required | | units 3- Verify your answer by preparing a contribution format income statement at the target b. sales level. 105.600 $