-29.85% is the change from 680 to 477
Calculation steps:
[( 477 - 680 ) ÷ 680] x 100 = -29.85%
Formula
Percentage change = [(477 - 680) / 680] x 100
Subtract the new number by the original number
477 - 680 = -203
-203 ÷ 680 = -0.2985294117647059
-0.2985294117647059 x 100 = -29.85%