-61.8% is the change from 835 to 319
Calculation steps:
[( 319 - 835 ) ÷ 835] x 100 = -61.8%
Formula
Percentage change = [(319 - 835) / 835] x 100
Subtract the new number by the original number
319 - 835 = -516
-516 ÷ 835 = -0.6179640718562874
-0.6179640718562874 x 100 = -61.8%