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?
Responses
A 25%25%
B 40%40%
C 45%45%
D 83%83%
E 120%120%
To calculate the percentage decrease, you need to find the difference between the original amount of toys and the new amount, and then divide that difference by the original amount and multiply by 100.
The difference is 55 - 30 = 25.
The percentage decrease is (25 / 55) * 100 ≈ 45%.
Therefore, the correct answer is C) 45%.