I checked my numbers and had to change member #5 to 2.4185 BTC. Not all of your numbers match what is on the blockchain, I didn't look at every member but #5 shows 2.01 on your list and 2.4185 on the blockchain. It's probably the one member, I had to change it on the spreadsheet myself.
The total BTC adds up to 21.71934119 which doesn't match BitOffers numbers as well.