135.84% is the change from 346 to 816
Calculation steps:
[( 816 - 346 ) ÷ 346] x 100 = 135.84%
Formula
Percentage change = [(816 - 346) / 346] x 100
Subtract the new number by the original number
816 - 346 = 470
470 ÷ 346 = 1.3583815028901733
1.3583815028901733 x 100 = 135.84%