Answer :
Answer:-
Working:-
[tex]=\frac{66-33}{66} (100)[/tex]
[tex]\frac{1}{2} (100)[/tex]
[tex]= 50[/tex]% decrease
50% decrease.
To calculate percentage decrease from 2 given numbers, we can do: original quantity - new quantity / original quantity.
For this question, first we work out what the original quantity - new quantity is. The original quantity is 66 and the new quantity is 33, so we do 66-33, equaling 33.
Original quantity - new quantity = 33
Original quanity = 66
Next, we substitute our numbers into our formula. 33/66.
This gives us 0.5.
We multiply it by 100 to change into a percentage.
0.5 x 100 = 50.
Therefore, there is a 50% decrease.
To calculate percentage decrease from 2 given numbers, we can do: original quantity - new quantity / original quantity.
For this question, first we work out what the original quantity - new quantity is. The original quantity is 66 and the new quantity is 33, so we do 66-33, equaling 33.
Original quantity - new quantity = 33
Original quanity = 66
Next, we substitute our numbers into our formula. 33/66.
This gives us 0.5.
We multiply it by 100 to change into a percentage.
0.5 x 100 = 50.
Therefore, there is a 50% decrease.
