Why has KKR's purse been reduced by ₹69 crore despite them spending ₹57 crore?

KKR's purse was reduced by ₹69 crore despite them spending ₹57 crore to retain four capped and two uncapped players. According to rules, if a team retains four capped and two uncapped players, ₹18 crore each for first and fourth capped players, ₹14 crore for second, ₹11 crore for third, and ₹4 crore each for uncapped players will be deducted.