-85.15% is the change from 559 to 83
Calculation steps:
[( 83 - 559 ) ÷ 559] x 100 = -85.15%
Formula
Percentage change = [(83 - 559) / 559] x 100
Subtract the new number by the original number
83 - 559 = -476
-476 ÷ 559 = -0.851520572450805
-0.851520572450805 x 100 = -85.15%