sum values
A B
!7 -200
-61 -5
-4 27
19 -9
230 13
-100 -70
28 -3
I want the sum of multiplication as result of: Multiply what is Only Negative in Column A to it's adjacent in Column B if it is only Negative.
Many thanks for any help
iMac (21.5-inch Mid 2011), OS X Mavericks (10.9.3)