-57.07% is the change from 813 to 349
Calculation steps:
[( 349 - 813 ) ÷ 813] x 100 = -57.07%
Formula
Percentage change = [(349 - 813) / 813] x 100
Subtract the new number by the original number
349 - 813 = -464
-464 ÷ 813 = -0.5707257072570726
-0.5707257072570726 x 100 = -57.07%