Answer:
28.45%
Step-by-step explanation:
The price of a new cell phone = $225
With the extended warranty, the total cost comes to $289.
We need to find the percent of the purchase price is the price of the warranty. It can be calculated as follows :
[tex]\%=\dfrac{|\text{purchase price-extended warrenty price}|}{\text{purchase price}}\times 100\\\\=\dfrac{|225-289|}{225}\times 100\\\\=28.45\%[/tex]
So, the percent of the purchase price is 28.45%.