-18.95% is the change from 438 to 355
Calculation steps:
[( 355 - 438 ) ÷ 438] x 100 = -18.95%
Formula
Percentage change = [(355 - 438) / 438] x 100
Subtract the new number by the original number
355 - 438 = -83
-83 ÷ 438 = -0.18949771689497716
-0.18949771689497716 x 100 = -18.95%