-58.25% is the change from 812 to 339
Calculation steps:
[( 339 - 812 ) ÷ 812] x 100 = -58.25%
Formula
Percentage change = [(339 - 812) / 812] x 100
Subtract the new number by the original number
339 - 812 = -473
-473 ÷ 812 = -0.5825123152709359
-0.5825123152709359 x 100 = -58.25%