-77.18% is the change from 977 to 223
Calculation steps:
[( 223 - 977 ) ÷ 977] x 100 = -77.18%
Formula
Percentage change = [(223 - 977) / 977] x 100
Subtract the new number by the original number
223 - 977 = -754
-754 ÷ 977 = -0.7717502558853634
-0.7717502558853634 x 100 = -77.18%