-75.15% is the change from 978 to 243
Calculation steps:
[( 243 - 978 ) ÷ 978] x 100 = -75.15%
Formula
Percentage change = [(243 - 978) / 978] x 100
Subtract the new number by the original number
243 - 978 = -735
-735 ÷ 978 = -0.7515337423312883
-0.7515337423312883 x 100 = -75.15%