-40.62% is the change from 975 to 579
Calculation steps:
[( 579 - 975 ) ÷ 975] x 100 = -40.62%
Formula
Percentage change = [(579 - 975) / 975] x 100
Subtract the new number by the original number
579 - 975 = -396
-396 ÷ 975 = -0.40615384615384614
-0.40615384615384614 x 100 = -40.62%