-58.5% is the change from 829 to 344
Calculation steps:
[( 344 - 829 ) ÷ 829] x 100 = -58.5%
Formula
Percentage change = [(344 - 829) / 829] x 100
Subtract the new number by the original number
344 - 829 = -485
-485 ÷ 829 = -0.5850422195416164
-0.5850422195416164 x 100 = -58.5%