-39.85% is the change from 133 to 80
Calculation steps:
[( 80 - 133 ) ÷ 133] x 100 = -39.85%
Formula
Percentage change = [(80 - 133) / 133] x 100
Subtract the new number by the original number
80 - 133 = -53
-53 ÷ 133 = -0.39849624060150374
-0.39849624060150374 x 100 = -39.85%