leave sum of j7 at 40 or less put excess in k7

[Pete_UK]

It would help if you used this white space to describe your problem in
more detail.

Pete

 

[Fred Smith]

If your sum is in h7, use:
J7: =min(40,h7)
K7: =if(h7>40,h7-40,0)

Regards,
Fred