-18.03% is the change from 427 to 350
Calculation steps:
[( 350 - 427 ) ÷ 427] x 100 = -18.03%
Formula
Percentage change = [(350 - 427) / 427] x 100
Subtract the new number by the original number
350 - 427 = -77
-77 ÷ 427 = -0.18032786885245902
-0.18032786885245902 x 100 = -18.03%