-57.23% is the change from 816 to 349
Calculation steps:
[( 349 - 816 ) ÷ 816] x 100 = -57.23%
Formula
Percentage change = [(349 - 816) / 816] x 100
Subtract the new number by the original number
349 - 816 = -467
-467 ÷ 816 = -0.5723039215686274
-0.5723039215686274 x 100 = -57.23%