152.35% is the change from 340 to 858
Calculation steps:
[( 858 - 340 ) ÷ 340] x 100 = 152.35%
Formula
Percentage change = [(858 - 340) / 340] x 100
Subtract the new number by the original number
858 - 340 = 518
518 ÷ 340 = 1.5235294117647058
1.5235294117647058 x 100 = 152.35%