-66.32% is the change from 677 to 228
Calculation steps:
[( 228 - 677 ) ÷ 677] x 100 = -66.32%
Formula
Percentage change = [(228 - 677) / 677] x 100
Subtract the new number by the original number
228 - 677 = -449
-449 ÷ 677 = -0.6632200886262924
-0.6632200886262924 x 100 = -66.32%