-12.32% is the change from 349 to 306
Calculation steps:
[( 306 - 349 ) ÷ 349] x 100 = -12.32%
Formula
Percentage change = [(306 - 349) / 349] x 100
Subtract the new number by the original number
306 - 349 = -43
-43 ÷ 349 = -0.12320916905444126
-0.12320916905444126 x 100 = -12.32%