-28.98% is the change from 904 to 642
Calculation steps:
[( 642 - 904 ) ÷ 904] x 100 = -28.98%
Formula
Percentage change = [(642 - 904) / 904] x 100
Subtract the new number by the original number
642 - 904 = -262
-262 ÷ 904 = -0.28982300884955753
-0.28982300884955753 x 100 = -28.98%