-40.64% is the change from 972 to 577
Calculation steps:
[( 577 - 972 ) ÷ 972] x 100 = -40.64%
Formula
Percentage change = [(577 - 972) / 972] x 100
Subtract the new number by the original number
577 - 972 = -395
-395 ÷ 972 = -0.4063786008230453
-0.4063786008230453 x 100 = -40.64%