Sum formula

[#1]

How to use the Sum formula with 3 references?

Sum({<[Maint.] = {'Planned'}>}[Total Price]) - [Mês]=('Overhaul')[Total Price])

[sunny_talwar]

Can you elaborate as to what exactly are you looking to do?

[MK_QSL]

May be

Sum({<[Maint.] = {'Planned'}>}[Total Price])

-

SUM({<[Mês]=('Overhaul')>}[Total Price])