-62.93% is the change from 634 to 235
Calculation steps:
[( 235 - 634 ) ÷ 634] x 100 = -62.93%
Formula
Percentage change = [(235 - 634) / 634] x 100
Subtract the new number by the original number
235 - 634 = -399
-399 ÷ 634 = -0.6293375394321766
-0.6293375394321766 x 100 = -62.93%