Hi ,
There is really no easy way to sum all the highlighted values , especially if you have a hundred of them.
The correct thing to do would be to always use the SUBTOTAL function , with 9 as its first parameter ; this does the same operation as the SUM function ; the actual benefit of using SUBTOTAL is that every SUBTOTAL ignores nested SUBTOTAL results.
Thus , if you have a 100 SUBTOTAL results in column C , having a SUBTOTAL formula including the entire range , say C2:C41 , will return the correct sum of all the individual figures , ignoring all the SUBTOTAL results that are in between C2 and C41.
Narayan