Thread:Lampville/@comment-5039776-20120904103459/@comment-5116140-20121001211555

Yep, it may seem odd that they don't directly just record the total number of coins.

But it is a bit like my bank report. There, they list all the checks and then all the bills. Finally they subtract the two totals and report my balance.

Coins = premium_earned - premium_earned_spent