-73.68% is the change from 76 to 20
Calculation steps:
[( 20 - 76 ) ÷ 76] x 100 = -73.68%
Formula
Percentage change = [(20 - 76) / 76] x 100
Subtract the new number by the original number
20 - 76 = -56
-56 ÷ 76 = -0.7368421052631579
-0.7368421052631579 x 100 = -73.68%