-61.93% is the change from 218 to 83
Calculation steps:
[( 83 - 218 ) ÷ 218] x 100 = -61.93%
Formula
Percentage change = [(83 - 218) / 218] x 100
Subtract the new number by the original number
83 - 218 = -135
-135 ÷ 218 = -0.6192660550458715
-0.6192660550458715 x 100 = -61.93%