Tuesday, July 03, 2012

Communicating discounts

10% off is 9/10 of the price.
20% off is 4/5 of the price.

50% off is 1/2 of the price.
66% off is 1/3 of the price.
75% off is 1/4 of the price.
80% off is 1/5 of the price.
90% off is 1/10 of the price.
95% off is 1/20 of the price.

It makes sense to switch to 1/n mode if offering more than 50% off.

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