-58.73% is the change from 836 to 345
Calculation steps:
[( 345 - 836 ) ÷ 836] x 100 = -58.73%
Formula
Percentage change = [(345 - 836) / 836] x 100
Subtract the new number by the original number
345 - 836 = -491
-491 ÷ 836 = -0.5873205741626795
-0.5873205741626795 x 100 = -58.73%