-27.13% is the change from 634 to 462
Calculation steps:
[( 462 - 634 ) ÷ 634] x 100 = -27.13%
Formula
Percentage change = [(462 - 634) / 634] x 100
Subtract the new number by the original number
462 - 634 = -172
-172 ÷ 634 = -0.27129337539432175
-0.27129337539432175 x 100 = -27.13%