2000/x = 60/100 Comparing fractions, if 2000 is 40% off, then 2000 is the remaining 60% of the price. Cross multiply, 2000 times 100 divided by 60 is 3333 + (1/3). 3333.33 is the original price, using only the first two decimals since it is dollar value. To check, multiply this value to be 60% of the current value. If 3333.33 * 0.6 is nearly 2000 then you know that you have the right answer. Another way to check is to take the current value of 3333.33 and do this 3333.33-(3333.33*0.4) Because we are subtracting 40% of the value by first calculating the 40%, then subtracting it.