Conditional Formatting Not Working on Correct Number Range

Hi,

I am trying to create a calculated column with these conditional formatting rules, but the colors appear to be off by one range (ie the numbers in the 80s are in green instead of yellow, 70s are yellow instead of red). I am not getting any errors for the column and the numbers are correct, so was just wondering why the colors are off. Also worth noting, I used this same set up for two other columns and did not have issues with the colored backgrounds. conditional formatting rulesoutcome