-40.43% is the change from 972 to 579
Calculation steps:
[( 579 - 972 ) ÷ 972] x 100 = -40.43%
Formula
Percentage change = [(579 - 972) / 972] x 100
Subtract the new number by the original number
579 - 972 = -393
-393 ÷ 972 = -0.404320987654321
-0.404320987654321 x 100 = -40.43%