Need help with problem below please!

A project currently generates sales of $14 million, variable costs equal 50% of sales, and fixed costs are $2.8 million. The firm's tax rate is 21%. Assume all sales and expenses are cash items. a. What are the effects on cash flow, if sales increase from $14 million to $15.4 million? Note: Input the amount as positive value. Enter your answer in dollars not in millions. b. What are the effects on cash flow, if variable costs increase to 60% of sales? Note: Input the amount as positive value. Enter your answer in dollars not in millions. a. Cash flow by b. Cash flow by