-40.71% is the change from 140 to 83
Calculation steps:
[( 83 - 140 ) ÷ 140] x 100 = -40.71%
Formula
Percentage change = [(83 - 140) / 140] x 100
Subtract the new number by the original number
83 - 140 = -57
-57 ÷ 140 = -0.40714285714285714
-0.40714285714285714 x 100 = -40.71%