I need help writing a formula that helps me finding out the days that I need to charge after certain equipment rental period is due. The equipment is free of rent for the first 28 days, and the rental can start any day of the week, but after it has been returned, the return date can also fall in any day of the week. Please see the example below. I hope that you can help.
1 A B C D E F G H I J K L M
2 Delivered Returned 28 Day Rental Price Daily Rental Rental Start Date 11/18/12 11/25/12 12/2/12 12/9/12 12/16/12 12/23/12 12/30/12 1/6/13
3 Days 5 7 1
4 9/28/2012 12/10/12 100 $ 3.571 11/27/12 $17.86 $ 25.00 $ 3.57
It's not very clear from the example, mainly (I think) due to the fixed width of text in these questions. My direct email is firstname.lastname@example.org which would allow you to send me an example file - but BASICALLY it sounds reasonably straightforward, in that to excel dates are simply numbers - so returned date - rental start date would give you a number of days - so if it is as simple as rate for days over 28 multiplied by days then it is along the lines of
The max bit of the function ensures that items returned within the 28 day period get charged zero rather than using the negative number that would otherwise be returned.
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