Problem with the ‘IF’ command

Hi! I´m trying to make a resume of savings in a theoretically donation transaction but I´m been unable to do it.

The formula is: 1-250 saves 80%
and <250 is: first 250, 80% And the rest 40%

For X <= 250€: X*0.8
For X > 250€: (250*0.8) + (X-250)*0.4

Any idea how to construct the ‘IF’ to work properly and as expected? formula/sentence?

The page I need help with: [log in to see the link]


This site will teach you how to build a WordPress website for beginners. We will cover everything from installing WordPress to adding pages, posts, and images to your site. You will learn how to customize your site with themes and plugins, as well as how to market your site online.

Buy WordPress Transfer