-59.04% is the change from 83 to 34
Calculation steps:
[( 34 - 83 ) ÷ 83] x 100 = -59.04%
Formula
Percentage change = [(34 - 83) / 83] x 100
Subtract the new number by the original number
34 - 83 = -49
-49 ÷ 83 = -0.5903614457831325
-0.5903614457831325 x 100 = -59.04%