-33.57% is the change from 974 to 647
Calculation steps:
[( 647 - 974 ) ÷ 974] x 100 = -33.57%
Formula
Percentage change = [(647 - 974) / 974] x 100
Subtract the new number by the original number
647 - 974 = -327
-327 ÷ 974 = -0.33572895277207393
-0.33572895277207393 x 100 = -33.57%