-30.7% is the change from 684 to 474
Calculation steps:
[( 474 - 684 ) ÷ 684] x 100 = -30.7%
Formula
Percentage change = [(474 - 684) / 684] x 100
Subtract the new number by the original number
474 - 684 = -210
-210 ÷ 684 = -0.30701754385964913
-0.30701754385964913 x 100 = -30.7%