-62.81% is the change from 839 to 312
Calculation steps:
[( 312 - 839 ) ÷ 839] x 100 = -62.81%
Formula
Percentage change = [(312 - 839) / 839] x 100
Subtract the new number by the original number
312 - 839 = -527
-527 ÷ 839 = -0.6281287246722288
-0.6281287246722288 x 100 = -62.81%