-84.96% is the change from 133 to 20
Calculation steps:
[( 20 - 133 ) ÷ 133] x 100 = -84.96%
Formula
Percentage change = [(20 - 133) / 133] x 100
Subtract the new number by the original number
20 - 133 = -113
-113 ÷ 133 = -0.849624060150376
-0.849624060150376 x 100 = -84.96%