-22.71% is the change from 634 to 490
Calculation steps:
[( 490 - 634 ) ÷ 634] x 100 = -22.71%
Formula
Percentage change = [(490 - 634) / 634] x 100
Subtract the new number by the original number
490 - 634 = -144
-144 ÷ 634 = -0.22712933753943218
-0.22712933753943218 x 100 = -22.71%