How to subtract & add in IF, THEN, OR Statements

I have a basic problem and am looking for hopefully a simple answer. I am entering a dollar amount into one cell. I want the adjacent cell to either deduct $5 if the amount is less than $30 or deduct $10 if the amount is greater than $30.

Thank you in advance for your help.

Phil

Try

=A1-(5*((A1>30)+1)

Which cells are you using? Assume you enter your amount in A1, then put this in B1:

=IF(A1="","",IF(A1<30,A1-5,A1-10))

Hope this helps.

Pete

Solved.

Thank you.