-82.5% is the change from 577 to 101
Calculation steps:
[( 101 - 577 ) ÷ 577] x 100 = -82.5%
Formula
Percentage change = [(101 - 577) / 577] x 100
Subtract the new number by the original number
101 - 577 = -476
-476 ÷ 577 = -0.8249566724436742
-0.8249566724436742 x 100 = -82.5%