-43.87% is the change from 978 to 549
Calculation steps:
[( 549 - 978 ) ÷ 978] x 100 = -43.87%
Formula
Percentage change = [(549 - 978) / 978] x 100
Subtract the new number by the original number
549 - 978 = -429
-429 ÷ 978 = -0.4386503067484663
-0.4386503067484663 x 100 = -43.87%