-40.82% is the change from 975 to 577
Calculation steps:
[( 577 - 975 ) ÷ 975] x 100 = -40.82%
Formula
Percentage change = [(577 - 975) / 975] x 100
Subtract the new number by the original number
577 - 975 = -398
-398 ÷ 975 = -0.4082051282051282
-0.4082051282051282 x 100 = -40.82%