-29.96% is the change from 671 to 470
Calculation steps:
[( 470 - 671 ) ÷ 671] x 100 = -29.96%
Formula
Percentage change = [(470 - 671) / 671] x 100
Subtract the new number by the original number
470 - 671 = -201
-201 ÷ 671 = -0.2995529061102832
-0.2995529061102832 x 100 = -29.96%