-28.7% is the change from 345 to 246
Calculation steps:
[( 246 - 345 ) ÷ 345] x 100 = -28.7%
Formula
Percentage change = [(246 - 345) / 345] x 100
Subtract the new number by the original number
246 - 345 = -99
-99 ÷ 345 = -0.28695652173913044
-0.28695652173913044 x 100 = -28.7%