Given,
The price of the tennis rocket = $200
The actual price of the tennis racket was $400
To find,
The percentage error in the price of the rocket.
Solution,
The percentage error is calculated as :
% = (final value-actual value)/actual value × 100
[tex]\%=\dfrac{400-200}{400}\times 100\\\\=50\%[/tex]
So, the percent error is 50%.
