-30.93% is the change from 388 to 268
Calculation steps:
[( 268 - 388 ) ÷ 388] x 100 = -30.93%
Formula
Percentage change = [(268 - 388) / 388] x 100
Subtract the new number by the original number
268 - 388 = -120
-120 ÷ 388 = -0.30927835051546393
-0.30927835051546393 x 100 = -30.93%