-82.5% is the change from 583 to 102
Calculation steps:
[( 102 - 583 ) ÷ 583] x 100 = -82.5%
Formula
Percentage change = [(102 - 583) / 583] x 100
Subtract the new number by the original number
102 - 583 = -481
-481 ÷ 583 = -0.8250428816466552
-0.8250428816466552 x 100 = -82.5%