-57.8% is the change from 827 to 349
Calculation steps:
[( 349 - 827 ) ÷ 827] x 100 = -57.8%
Formula
Percentage change = [(349 - 827) / 827] x 100
Subtract the new number by the original number
349 - 827 = -478
-478 ÷ 827 = -0.5779927448609432
-0.5779927448609432 x 100 = -57.8%