-6.88% is the change from 247 to 230
Calculation steps:
[( 230 - 247 ) ÷ 247] x 100 = -6.88%
Formula
Percentage change = [(230 - 247) / 247] x 100
Subtract the new number by the original number
230 - 247 = -17
-17 ÷ 247 = -0.06882591093117409
-0.06882591093117409 x 100 = -6.88%