Because in an IF statement, once the the test is TRUE, the Else is not
evaluated. Reorder your test with that in mind.

George wrote:

Hello, can someone please help me with the following formula;
=IF(F5<=2999.99,"25%",IF(F5=3000,"50%",IF(F5=500 0,"75%",IF(F5=7000,"100%"))))
For some reason it calculates the 25% and 50% correctly, but it won't
calculate the 75% or 100% at all, it just stays at 50%