-31.46% is the change from 391 to 268
Calculation steps:
[( 268 - 391 ) ÷ 391] x 100 = -31.46%
Formula
Percentage change = [(268 - 391) / 391] x 100
Subtract the new number by the original number
268 - 391 = -123
-123 ÷ 391 = -0.3145780051150895
-0.3145780051150895 x 100 = -31.46%