Store managers believe that they need another coffee machine. They give you the following numbers. Your task is to see if the numbers translate into a positive net present value. Consider the addition of value to the company a positive number. Use the excel function $=$npv $+$cash flow at time zero$$ for your calculations. If this number is positive, then the store managers are correct and you should authorize the purchase of the machine. True $($authorize$)$ or False $($do not authorize$)$