-50.26% is the change from 388 to 193
Calculation steps:
[( 193 - 388 ) ÷ 388] x 100 = -50.26%
Formula
Percentage change = [(193 - 388) / 388] x 100
Subtract the new number by the original number
193 - 388 = -195
-195 ÷ 388 = -0.5025773195876289
-0.5025773195876289 x 100 = -50.26%