Question

A furniture store is decreasing the price of its furniture. A £920 sofa decreasing by 18%. What is the price of the sofa after the decreasing?

Answer 1

If we have an original value A and we know that it decreases by a certain p percent then its new value after the decreasing C is given by:

$C=A\cdot(1-\frac{p}{100})$

In this case the original value of the sofa was 920 pounds and the percentage of decrease p is 18 so we get:

$C=920\cdot(1-\frac{18}{100})=920\cdot0.82=754.4$

So the answer is £754.4.