-50.52% is the change from 388 to 192
Calculation steps:
[( 192 - 388 ) ÷ 388] x 100 = -50.52%
Formula
Percentage change = [(192 - 388) / 388] x 100
Subtract the new number by the original number
192 - 388 = -196
-196 ÷ 388 = -0.5051546391752577
-0.5051546391752577 x 100 = -50.52%