-29.07% is the change from 908 to 644
Calculation steps:
[( 644 - 908 ) ÷ 908] x 100 = -29.07%
Formula
Percentage change = [(644 - 908) / 908] x 100
Subtract the new number by the original number
644 - 908 = -264
-264 ÷ 908 = -0.2907488986784141
-0.2907488986784141 x 100 = -29.07%