-26.68% is the change from 847 to 621
Calculation steps:
[( 621 - 847 ) ÷ 847] x 100 = -26.68%
Formula
Percentage change = [(621 - 847) / 847] x 100
Subtract the new number by the original number
621 - 847 = -226
-226 ÷ 847 = -0.2668240850059032
-0.2668240850059032 x 100 = -26.68%