-40.96% is the change from 83 to 49
Calculation steps:
[( 49 - 83 ) ÷ 83] x 100 = -40.96%
Formula
Percentage change = [(49 - 83) / 83] x 100
Subtract the new number by the original number
49 - 83 = -34
-34 ÷ 83 = -0.40963855421686746
-0.40963855421686746 x 100 = -40.96%