FCFE WCInv Help Please

Hey, dealing with Reading 42 Problem 13(a), I see they have the WCInv at 41. I’ve got it down to 51, but I’m not seeing where they’re getting that other 10 out of. If anyone can clarify this or help out it would be greatly appreciated.

delta Current Assets = 326 - 201 = 125 Delta Current Liabs = 141 - 57 = 84 NWCINV = Delta Current Assets - Delta Current Liabs = 125 - 84 = 41

Thanks a lot, I’m a dumb ass. I was including PP&E and taking out the 5 in cash. My bad, thanks again.