Is the value of the new amount greater than or less than the value of the original amount?
25 % decrease
Practice makes perfect
To determine percent change p, we can use the following general formula.
p % =Amount of increase or decrease/Original amountFrom the given values, we can see the original amount was $20 and the new amount is $15. This is a decrease in the amount.
20-15= 5
The difference between the new amount and the original amount is $5. Now we can use the formula.