hi this is my question:
In a sale the price of a digital radio decreases from £75 to £66.
work out the percentage decrease in price.
im not sure but would it be 72.53%?? if that is wrong can anyone help me please?
The "decrease" in sterling is 75-66=£9
This is a decrease of £9 from £75,
so you must express this decrease as a percentage of £75
The fraction is $\displaystyle \frac{9}{75}$
A percentage is the fraction multiplied by 100
(remember $\displaystyle \frac{1}{2}$ is 50%).
How did you calculate 72.53% ?