-58% is the change from 831 to 349
Calculation steps:
[( 349 - 831 ) ÷ 831] x 100 = -58%
Formula
Percentage change = [(349 - 831) / 831] x 100
Subtract the new number by the original number
349 - 831 = -482
-482 ÷ 831 = -0.5800240673886883
-0.5800240673886883 x 100 = -58%