-57.28% is the change from 810 to 346
Calculation steps:
[( 346 - 810 ) ÷ 810] x 100 = -57.28%
Formula
Percentage change = [(346 - 810) / 810] x 100
Subtract the new number by the original number
346 - 810 = -464
-464 ÷ 810 = -0.5728395061728395
-0.5728395061728395 x 100 = -57.28%