Heather is trying to decrease the amount of toys that Oliver has. Originally, he had 55 toys in his room and now he only has 30. By what percentage did Heather decrease the amount of toys?
To find the percentage decrease, we first need to calculate how many toys were removed.
Number of toys removed = 55 - 30 = 25
Next, we need to find the percentage decrease:
Percentage decrease = (Number of toys removed / Original number of toys) x 100
Percentage decrease = (25 / 55) x 100
Percentage decrease = 0.4545 x 100
Percentage decrease = 45.45%
Heather decreased the amount of toys by 45.45%.