-83.07% is the change from 579 to 98
Calculation steps:
[( 98 - 579 ) ÷ 579] x 100 = -83.07%
Formula
Percentage change = [(98 - 579) / 579] x 100
Subtract the new number by the original number
98 - 579 = -481
-481 ÷ 579 = -0.8307426597582038
-0.8307426597582038 x 100 = -83.07%