-36.13% is the change from 393 to 251
Calculation steps:
[( 251 - 393 ) ÷ 393] x 100 = -36.13%
Formula
Percentage change = [(251 - 393) / 393] x 100
Subtract the new number by the original number
251 - 393 = -142
-142 ÷ 393 = -0.361323155216285
-0.361323155216285 x 100 = -36.13%