-13.99% is the change from 393 to 338
Calculation steps:
[( 338 - 393 ) ÷ 393] x 100 = -13.99%
Formula
Percentage change = [(338 - 393) / 393] x 100
Subtract the new number by the original number
338 - 393 = -55
-55 ÷ 393 = -0.13994910941475827
-0.13994910941475827 x 100 = -13.99%