This:Slots BTC/Slot Person 6 0.20 A 1 0.16 B 1 0.08 C 1 0.08 DBecomes:Slots BTC/Slot Person 6 0.12 A [step 4: reduced to 0.10+0.02=0.12] 1 0.10 B [step 3: reduced to 0.08+0.02=0.10] 1 0.08 C [step 2: same as the next-lowest, unchanged] 1 0.08 D [step 1: the lowest bid is always unchanged]