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How to I do this formula to work


New Member
I am trying to do a formula that has three different out comes
if I1 (date) is March thru August the % is 7.5
If I1 (date) is Sept thru October the % is 8.0
If I1 (date) is Nov thru Feb the % is 9.0
Can any one help


If year does not matter
how about

=IF(AND(MONTH(I1)>=3,MONTH(I1)<=8), 0.075, IF(AND(MONTH(I1)>=9,MONTH(I1)<=10),0.08,0.09))