-73.31% is the change from 978 to 261
Calculation steps:
[( 261 - 978 ) ÷ 978] x 100 = -73.31%
Formula
Percentage change = [(261 - 978) / 978] x 100
Subtract the new number by the original number
261 - 978 = -717
-717 ÷ 978 = -0.7331288343558282
-0.7331288343558282 x 100 = -73.31%