-43.05% is the change from 978 to 557
Calculation steps:
[( 557 - 978 ) ÷ 978] x 100 = -43.05%
Formula
Percentage change = [(557 - 978) / 978] x 100
Subtract the new number by the original number
557 - 978 = -421
-421 ÷ 978 = -0.43047034764826175
-0.43047034764826175 x 100 = -43.05%