percentage increase & decrease

original amount 20
decrease % _blank
new amount 19

What is the formula used to get the decreased amount?

the % change is found by dividing the amount changed by the original amount:

(19-20)/20 = -1/20 = -5%

Thank you so much for the help

To calculate the percentage decrease, you can use the following formula:

Percentage decrease = (Original amount - New amount) / Original amount * 100

In the given example:
Original amount = 20
New amount = 19

So, to calculate the percentage decrease:
Percentage decrease = (20 - 19) / 20 * 100
= 1 / 20 * 100
= 5%

Therefore, the decrease percentage is 5%.