-6.12% is the change from 343 to 322
Calculation steps:
[( 322 - 343 ) ÷ 343] x 100 = -6.12%
Formula
Percentage change = [(322 - 343) / 343] x 100
Subtract the new number by the original number
322 - 343 = -21
-21 ÷ 343 = -0.061224489795918366
-0.061224489795918366 x 100 = -6.12%