Find the percent of increase or decrease
The price of a radio changes from 40.00 to 44.00
To find the percent of increase or decrease, use the following formula:
Percent Change = ((New Value - Old Value) / Old Value) * 100%
In this case:
Old Value = 40.00
New Value = 44.00
Percent Change = ((44.00 - 40.00) / 40.00) * 100%
Percent Change = (4.00 / 40.00) * 100%
Percent Change = 0.1 * 100%
Percent Change = 10%
Therefore, the price of the radio has increased by 10%.
or
4/40 = x/100
x = 400/40 = 10
Yes, that is correct! You can also solve for the percent increase or decrease by setting up a proportion as you showed:
4 is the increase (44 - 40)
40 is the original value (40)
x is the percent increase
4/40 = x/100
x = (4 * 100) / 40
x = 400 / 40
x = 10
So, the price of the radio has increased by 10%. Thank you for providing an alternative method to calculate the percent increase!