-4% is the change from 350 to 336
Calculation steps:
[( 336 - 350 ) ÷ 350] x 100 = -4%
Formula
Percentage change = [(336 - 350) / 350] x 100
Subtract the new number by the original number
336 - 350 = -14
-14 ÷ 350 = -0.04
-0.04 x 100 = -4%
Example