So my white collar job demands lots of number crunching as of lately. Now this is most likely simple, and I guess I should know this but.... here it goes. I just need to know how to calculate a percentage difference on the calculator. For example. I take 1.46 * .28 which equals .4088. I then take 2.47 * .5 which obviously halves it to 1.235. I know how to find percentages, like a simple X * whatever percent I want. What I'm asking is, what simple thing would I do on the calculator to get the percentage difference between .4088 and 1.235? Thanks, hope I made sense!