142.94% is the change from 340 to 826
Calculation steps:
[( 826 - 340 ) ÷ 340] x 100 = 142.94%
Formula
Percentage change = [(826 - 340) / 340] x 100
Subtract the new number by the original number
826 - 340 = 486
486 ÷ 340 = 1.4294117647058824
1.4294117647058824 x 100 = 142.94%