135.82% is the change from 349 to 823
Calculation steps:
[( 823 - 349 ) ÷ 349] x 100 = 135.82%
Formula
Percentage change = [(823 - 349) / 349] x 100
Subtract the new number by the original number
823 - 349 = 474
474 ÷ 349 = 1.3581661891117478
1.3581661891117478 x 100 = 135.82%