decay

Hello! I have in a cell a number which is the initial amount and in another cell a rate of decay. That rate can be a number by which you reduce the initial amount or a decay percentage by which again you reduce the initial amount. How can I write a formula that will calculate the decay of this...

I let Excel provide an Exponential Curve for a set of data points (in blue). Is there a way to know the value of the points along the curve at each X axis value? I tried using exponential decay and a few other methods. No luck getting the table set up correctly.

Hi I am trying to build a revenue recognition formula within Excel. It's for a services company which can only consume service revenue at $40,000 per month. So for a deal of $100,000 the revenue would be recognized as $40k in month 1, $40k in month 2 and then $20k in month 3. So the inputs we...