-0.87% is the change from 346 to 343
Calculation steps:
[( 343 - 346 ) ÷ 346] x 100 = -0.87%
Formula
Percentage change = [(343 - 346) / 346] x 100
Subtract the new number by the original number
343 - 346 = -3
-3 ÷ 346 = -0.008670520231213872
-0.008670520231213872 x 100 = -0.87%