-30.58% is the change from 677 to 470
Calculation steps:
[( 470 - 677 ) ÷ 677] x 100 = -30.58%
Formula
Percentage change = [(470 - 677) / 677] x 100
Subtract the new number by the original number
470 - 677 = -207
-207 ÷ 677 = -0.30576070901033975
-0.30576070901033975 x 100 = -30.58%