-57.8% is the change from 635 to 268
Calculation steps:
[( 268 - 635 ) ÷ 635] x 100 = -57.8%
Formula
Percentage change = [(268 - 635) / 635] x 100
Subtract the new number by the original number
268 - 635 = -367
-367 ÷ 635 = -0.5779527559055118
-0.5779527559055118 x 100 = -57.8%