Like in Canada.
Except for those of us that have a stash of steel core cents to pay exact change for
a while longer. My tea at Tim Hortons today cost me $1.88 instead of $1.90. ¢_¢
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Over 50 boxes of steel and zinc pennies in stockpile = 125,000 pennies.
Assuming an equal chance of total ending in:
0 or 5 = No rounding
1, 2, 6, 7 = round down in my favor
3, 4, 8, 9 = round up against me
So 4 out of 10 transactions there is an advantage to carrying pennies.
Half of those transactions save a penny and half save 2 pennies by having the pennies. Average savings 1.5 cents. Uses an average of 1.5 pennies.
I'm lucky if I do one cash transaction a day - but let's be generous and say one a day x 365 days X 4/10 = 146 transactions a year using 1.5 pennies on average = 219 pennies a year. 125,000/219 per year =
570.77 years supply of pennies for profitable rounding.