Your formula should be of the form =IF(X2 >= 85,0.559,IF(X2 >= 80,0.327,IF(X2 >=75,0.255,0)))
. This simulates the ELSE-IF
operand Excel lacks. Your formulas were using two conditions in each, but the second parameter of the IF
formula is the value to use if the condition evaluates to true
. You can't chain conditions in that manner.