-37.59% is the change from 133 to 83
Calculation steps:
[( 83 - 133 ) ÷ 133] x 100 = -37.59%
Formula
Percentage change = [(83 - 133) / 133] x 100
Subtract the new number by the original number
83 - 133 = -50
-50 ÷ 133 = -0.37593984962406013
-0.37593984962406013 x 100 = -37.59%