-76.36% is the change from 977 to 231
Calculation steps:
[( 231 - 977 ) ÷ 977] x 100 = -76.36%
Formula
Percentage change = [(231 - 977) / 977] x 100
Subtract the new number by the original number
231 - 977 = -746
-746 ÷ 977 = -0.7635619242579325
-0.7635619242579325 x 100 = -76.36%