-58.35% is the change from 814 to 339
Calculation steps:
[( 339 - 814 ) ÷ 814] x 100 = -58.35%
Formula
Percentage change = [(339 - 814) / 814] x 100
Subtract the new number by the original number
339 - 814 = -475
-475 ÷ 814 = -0.5835380835380836
-0.5835380835380836 x 100 = -58.35%