If you are taking 10% off the price of the item then it would be 90% of the original price. So type in the original price and then multiply by .90 (90%) to figure out what the discounted price would be.
A lot simpler than others seem to think. Enter the original amount - then just four buttons: - 1 0 %
Take the price, multiply it by .1, take that result, subtract it from the original price.
tap in price, press X then 0.9 then =
how do I get 10% discount using a calculator
