$13.$ Assume a postaudit showed that all estimates $($including total sales$)$ were exactly correct except for the variable expense ratio, which actually turned out to be $45\%.$ What was the project$$s actual net present value? $($Negative amount should be indicated by a minus sign. Round intermediate calculations and final answer to the nearest whole dollar amount.$)$

$14.$ Assume a postaudit showed that all estimates $($including total sales$)$ were exactly correct except for the variable expense ratio, which actually turned out to be $45\%.$ What was the project$$s actual pa

$15.$ Assume a postaudit showed that all estimates $($including total sales$)$ were exactly correct except for the variable expense ratio, which actually turned out to be $45\%.$ What was the project$$s actual simple rate of return? $($Round your answer to $2$ decimal places.$)$