A sofa regularly sells for $790. The sale price is $624.10. How do you find the percent decrease of the sale price from the regular price?
To calculate the percent change in any situation:
increase, decrease, profit, mark-up, discount, loss, growth, decline, etc..
Use the method:
The price of the sofa changed from
This is an amount of
There was a -21% change or a 21% decrease of the sale price from the regular price.
The formula for calculating the percentage change of something is
In this problem we are provided the old value of $790 and the new value of $624.10 which we can substitute into the formula to calculate the percentage change: