-62.3% is the change from 634 to 239
Calculation steps:
[( 239 - 634 ) ÷ 634] x 100 = -62.3%
Formula
Percentage change = [(239 - 634) / 634] x 100
Subtract the new number by the original number
239 - 634 = -395
-395 ÷ 634 = -0.6230283911671924
-0.6230283911671924 x 100 = -62.3%