-57.16% is the change from 810 to 347
Calculation steps:
[( 347 - 810 ) ÷ 810] x 100 = -57.16%
Formula
Percentage change = [(347 - 810) / 810] x 100
Subtract the new number by the original number
347 - 810 = -463
-463 ÷ 810 = -0.571604938271605
-0.571604938271605 x 100 = -57.16%