Question

After a 90% reduction, you purchase a new soft drink machine on sale for 72$. What was the original price of the soft drink machine?

Answer 1

To find the original price we have to divide the sale price by 1 minus the percentage. 

Original price = Sale price/(1 - percentage reduction)

 $72/(1-.90) = $720

So, the original price for the drink machine was $720.