How to pronounce “shekels”(noun) in English

to the half the day care centers that were the experimental group, they said, "Ok, we are changing the deal as of right now. You pick your kid up more than ten minutes late,ten shekels added to your bill, no if's, ands or but's; automatic fine." And the minute they added the fine, the behavior at those day care centers changed. Late pickupswent up every week for the next four weeks, topping out at triple the pre-fine average and then fluctuating between double and triple the pre-fine average for the remainder of