-19.54% is the change from 307 to 247
Calculation steps:
[( 247 - 307 ) ÷ 307] x 100 = -19.54%
Formula
Percentage change = [(247 - 307) / 307] x 100
Subtract the new number by the original number
247 - 307 = -60
-60 ÷ 307 = -0.19543973941368079
-0.19543973941368079 x 100 = -19.54%