Show Values As " Sum of over 180 on Nov 1.13 difference from Sum of 001 030 on June 1.13"

I have a question about "Show Values As " in PIVOT, enclosed is the sample

Simply put ,is there likelyhood I get back the correct value with formula "Sum of over 180 on Nov 1.13 -Sum

of 001 030 on June 1.13". .

Thanks you.

Thank you ,maitreygk, I found that I made a mistake from the very beginning ,could you

help on below :

I want sum up 6 month's AR (by individual),for instance ,in field L21 ,it equals the sum

of " B6+B9+B12+B15+B18+B21" ,does it workable? THX