-38.42% is the change from 393 to 242
Calculation steps:
[( 242 - 393 ) ÷ 393] x 100 = -38.42%
Formula
Percentage change = [(242 - 393) / 393] x 100
Subtract the new number by the original number
242 - 393 = -151
-151 ÷ 393 = -0.3842239185750636
-0.3842239185750636 x 100 = -38.42%