-26.32% is the change from 646 to 476
Calculation steps:
[( 476 - 646 ) ÷ 646] x 100 = -26.32%
Formula
Percentage change = [(476 - 646) / 646] x 100
Subtract the new number by the original number
476 - 646 = -170
-170 ÷ 646 = -0.2631578947368421
-0.2631578947368421 x 100 = -26.32%