-77.1% is the change from 978 to 224
Calculation steps:
[( 224 - 978 ) ÷ 978] x 100 = -77.1%
Formula
Percentage change = [(224 - 978) / 978] x 100
Subtract the new number by the original number
224 - 978 = -754
-754 ÷ 978 = -0.7709611451942741
-0.7709611451942741 x 100 = -77.1%