-40.72% is the change from 975 to 578
Calculation steps:
[( 578 - 975 ) ÷ 975] x 100 = -40.72%
Formula
Percentage change = [(578 - 975) / 975] x 100
Subtract the new number by the original number
578 - 975 = -397
-397 ÷ 975 = -0.40717948717948715
-0.40717948717948715 x 100 = -40.72%