-62.43% is the change from 849 to 319
Calculation steps:
[( 319 - 849 ) ÷ 849] x 100 = -62.43%
Formula
Percentage change = [(319 - 849) / 849] x 100
Subtract the new number by the original number
319 - 849 = -530
-530 ÷ 849 = -0.624263839811543
-0.624263839811543 x 100 = -62.43%