-40.66% is the change from 974 to 578
Calculation steps:
[( 578 - 974 ) ÷ 974] x 100 = -40.66%
Formula
Percentage change = [(578 - 974) / 974] x 100
Subtract the new number by the original number
578 - 974 = -396
-396 ÷ 974 = -0.406570841889117
-0.406570841889117 x 100 = -40.66%