-37.63% is the change from 388 to 242
Calculation steps:
[( 242 - 388 ) ÷ 388] x 100 = -37.63%
Formula
Percentage change = [(242 - 388) / 388] x 100
Subtract the new number by the original number
242 - 388 = -146
-146 ÷ 388 = -0.37628865979381443
-0.37628865979381443 x 100 = -37.63%