need help with b1 please

I did everything before B1, I need solition for B1 problem. Last two pictures is a B1 problem, but on the first picture it doesnt show the last colomn, so on the second picture for B1 (or the very last picture of all pictures) you can see it (after "effect" colomn). Hope this clarifies everything, I need it asap

Vice President for Sales and Marketing at Waterways Corporation is planning for production needs to meet sales demand in the coming year. He is also trying to determine how the company's profits might be increased in the coming year. This problem asks you to use cost-volume-profit concepts to help Waterways understand contribution margins of some of its products and decide whether to mass-produce any of them. Waterways markets a simple water control and timer that it mass-produces. Last year, the company sold 721,000 units at an average unit selling price of $3.50. The variable costs were $1,766,450, and the fixed costs were $529,935. (a1) What is the product's contribution margin ratio? (Round ratio to 0 decimal places, eg. 25\%.) Your answer is correct. What is the company's break-even point in sales units and in sales dollars for this product? Break-even point in units units Break-even point in dollars Your answer is correct. What is the margin of safety, both in dollars and as a ratio? (Round ratio to 0 decimal places, e.8. 25\%.) Margin of safety in dollars $ Margin of safety ratio % If management wanted to increase its income from this product by 10%, how many additional units would have to be sold to reac this income level? Waterways would have to sell an additional units eTextbook and Media Attempts: unlimited (a5) If sales increase by 51,000 units and the cost behaviors do not change, how much will income increase on this product? Income will increase by $ Waterways is thinking of mass-producing one of its special-order sprinklers. To do so would increase unit variable costs for all sprinklers by an average of $0.70. The company also estimates that this change could increase the overall number of sprinklers sold by 10%, and the average unit sales price would increase $0.20. Waterways currently sells 490.000 sprinkler units at an average unit selling price of $28,60. The manufacturing costs are $7,866,260 variable and $2,011,486 fixed. Selling and administrative costs are $2,644,240 variable and $809,370 fixed. If Waterways begins mass-producing its special-order sprinklers, how would this affect the company? (Round ratio answers to 0 decimal places, e.g. 5% and net income answers to 2 decimal places, eg. 5,275.25.) Waterways is thinking of mass-producing one of its special-order sprinklers. To do so would increase unit variable costs for all sprinklers by an average of $0.70. The company also estimates that this change could increase the overall number of sprinklers sold by 10%, and the average unit sales price would increase $0.20. Waterways currently sells 490,000 sprinkler units at an average unit selling price of $28.60. The manufacturing costs are $7,866,260 variable and $2,011,486 fixed. Selling and administrative costs are $2,644,240 variable and $809,370 fixed. If Waterways begins mass-producing its special-order sprinklers, how would this affect the company? (Round ratio answers to 0 decimal places, es. 5% and net income answers to 2 decimal places, e.g. 5,275.25.)