ORAC ... OMG, Pay Parade! One of the nauseas of being OO at Tengah on Pay Day for the hundreds of Locally Employed Personnel. As with your dit, Accounts issue vast sums of Singapore dollars and cents, worked out somehow to the last coin. Fortunately the pay was done indoors, in an office, and the LEPs came to us. But ... the prospects of getting the denominations correct [as envisaged by Accounts] every time was minimal, so although you might get the payments correct, the last 2 guys would each want [say] $12.50 and all you had left was a $20 and a $5!
One always did Pay Parade with a personal stash of small change and small notes to allow final adjustments to be made!