-28.74% is the change from 908 to 647
Calculation steps:
[( 647 - 908 ) ÷ 908] x 100 = -28.74%
Formula
Percentage change = [(647 - 908) / 908] x 100
Subtract the new number by the original number
647 - 908 = -261
-261 ÷ 908 = -0.28744493392070486
-0.28744493392070486 x 100 = -28.74%