40 percent off because if there is 100 percent minus 40 that's 60 percent then if our work out the other one as 100 minus 30 equals 70. 70 the sale price divided by 10 because that's how much you get off equals 7. 30 plus 7 equals 37 which means you would only get 37 percent off.
The better buy is 40% off the regular price as you will have to pay 60% of the price of a surfboard. If instead of this, you get 30% off the regular price and then 10% off the sale price, the 30% off means that you would have to pay 70% of the price of the surfboard and then, they will calculate the 10% off using this price that is lower and at the end, your total discount would be 37% which means that you would have to pay 63% of the price which is higher.
