HP Forums

This video clip shown how to calculate percentage of total

using Casio MS-20UC and most basic calculator like Casio fx-260

Video Clip: https://youtu.be/gKb9-ta2Dek

Remark:

The clip shown steps which is the long way of repeating the constant division with repeat
the total amount in memory.

The Konstant (k) feature keep the Total Amount and constant which in this case is the division.
So the right way of doing this faster ways as follow.

1. Total all the number in the list.
2. Press Divide twice (the letter k display)
3. Pick one of the number in the list then press Percent (Answer from one of the number in the list)
4. Pick another number in the list then press Percent ( Next answer from the number in the list)
5. Continue steps 4 (Do all the numbers in the list)

Gamo

Love the constant functionality on the old Casio's, and the old method of handling percentages. Unfortunately newer calculators like the fx-991EX haved dumbed down the percentage operations so that it is basically *0.01 now.

Not sure if you did the video, but I guess it was just to demonstrate the long way, while in the comments of the video and your post you show the more efficient way of calculating the percentages.

In any case, thanks for sharing!

Mjim thanks for the interest of this percentage calculations.

I also got another clips that shown how to calculate the

Pricing Calculations based on Cost, Price, Markup and Margin using

The same calculator.

https://youtu.be/vJDqD__k4Og

Gamo