-28.43% is the change from 904 to 647
Calculation steps:
[( 647 - 904 ) ÷ 904] x 100 = -28.43%
Formula
Percentage change = [(647 - 904) / 904] x 100
Subtract the new number by the original number
647 - 904 = -257
-257 ÷ 904 = -0.2842920353982301
-0.2842920353982301 x 100 = -28.43%