-1.75% is the change from 342 to 336
Calculation steps:
[( 336 - 342 ) ÷ 342] x 100 = -1.75%
Formula
Percentage change = [(336 - 342) / 342] x 100
Subtract the new number by the original number
336 - 342 = -6
-6 ÷ 342 = -0.017543859649122806
-0.017543859649122806 x 100 = -1.75%