140.64% is the change from 342 to 823
Calculation steps:
[( 823 - 342 ) ÷ 342] x 100 = 140.64%
Formula
Percentage change = [(823 - 342) / 342] x 100
Subtract the new number by the original number
823 - 342 = 481
481 ÷ 342 = 1.4064327485380117
1.4064327485380117 x 100 = 140.64%