-28.96% is the change from 908 to 645
Calculation steps:
[( 645 - 908 ) ÷ 908] x 100 = -28.96%
Formula
Percentage change = [(645 - 908) / 908] x 100
Subtract the new number by the original number
645 - 908 = -263
-263 ÷ 908 = -0.289647577092511
-0.289647577092511 x 100 = -28.96%