-77.2% is the change from 978 to 223
Calculation steps:
[( 223 - 978 ) ÷ 978] x 100 = -77.2%
Formula
Percentage change = [(223 - 978) / 978] x 100
Subtract the new number by the original number
223 - 978 = -755
-755 ÷ 978 = -0.7719836400817995
-0.7719836400817995 x 100 = -77.2%