-2.28% is the change from 351 to 343
Calculation steps:
[( 343 - 351 ) ÷ 351] x 100 = -2.28%
Formula
Percentage change = [(343 - 351) / 351] x 100
Subtract the new number by the original number
343 - 351 = -8
-8 ÷ 351 = -0.022792022792022793
-0.022792022792022793 x 100 = -2.28%