-76.66% is the change from 977 to 228
Calculation steps:
[( 228 - 977 ) ÷ 977] x 100 = -76.66%
Formula
Percentage change = [(228 - 977) / 977] x 100
Subtract the new number by the original number
228 - 977 = -749
-749 ÷ 977 = -0.7666325486182191
-0.7666325486182191 x 100 = -76.66%