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olga_2 [115]
3 years ago
13

A price is decreased from £800 to £640. Calculate the percentage change.

Mathematics
2 answers:
Viefleur [7K]3 years ago
7 0

Answer: Percentage change =20 % decrease

Step-by-step explanation:

Given original price =£800

New price= £640

Now change in price = £800 - £640

= £160

Since the new value is less than the old value so the percentage change will be negative i.e. decrease in percentage

Percentage change =  (Change in Price/ Original Price)× 100

% change= (£160/£800)×100

=\frac{1}{5}\times 100

=20 %

Hence percentage change in price = 20% decrease

Anni [7]3 years ago
6 0
<span>There is a decrease of 20% from ÂŁ800 to ÂŁ640.

    A change from 800 to 640 represents a negative change (decrease) of -20% Using the formula :

   Percent change = [(800 - 640) / 800] x 100 = -20 % (decrease)

       800 is the old value and 640 is the new value. In this case we have a negative change (decrease) of -20 percent because the new value is smaller than the old value.</span>
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