I think the syntax is wrong

IF function on excel takes 3 parameters

=IF(E2>E8, (return this if true) E1+E6, (return this if false) "E2 is smaller :(")

https://support.microsoft.com/en-us/office/if-function-69aed7c9-4e8a-4755-a9bc-aa8bbff73be2#:~:text=Use%20the%20IF%20function%2C%20one,another%20value%20if%20it's%20false.&text=For%20example%3A,B4%2DA4%2C%22%22)

been a while since i used excel but i think this should work like this!