Based on your financial expertise, provide your response or viewpoint on the given financial question or topic. The response format is open.

Calculating the cost of waiting longer for money
This looks correct to me, for simple interest. If you are dealing with compound interest, the formula would be: So, A = 500000(1+0.036/365)^(30), or 501,481.57, or an interest of 1481.57, assuming the 3.6% is the annual nominal interest rate and it is compounded daily. Note that you are ignoring the depreciation and also ignoring the percentage of customers who will forfeit their debt in the 30 - 60 day period.