-74.74% is the change from 978 to 247
Calculation steps:
[( 247 - 978 ) ÷ 978] x 100 = -74.74%
Formula
Percentage change = [(247 - 978) / 978] x 100
Subtract the new number by the original number
247 - 978 = -731
-731 ÷ 978 = -0.7474437627811861
-0.7474437627811861 x 100 = -74.74%