Hello,

I have a nested formula that works a treat, however I need to add on to it and I’m wondering if someone would have the expertise to help me.

Currently I have this;

IF(Litres<38,Litres*0.66,IF(AND(Litres>=38,Litres<277),25,Litres*0.09))

I have a whole other column called {reg fee} which I need the above IF formula to only be run if {reg fee} is NULL, and then IF the {Reg fee} = 379, and Litres is <750, then add 379 + Litres *.66, or if {reg fee} = 379, and Litres is >750, then add 379 + Litres *.9 *.66

Hope someone can help me make sense of this! Any help greatly appreciated