-0.4% is the change from 247 to 246
Calculation steps:
[( 246 - 247 ) ÷ 247] x 100 = -0.4%
Formula
Percentage change = [(246 - 247) / 247] x 100
Subtract the new number by the original number
246 - 247 = -1
-1 ÷ 247 = -0.004048582995951417
-0.004048582995951417 x 100 = -0.4%