160.94% is the change from 320 to 835
Calculation steps:
[( 835 - 320 ) ÷ 320] x 100 = 160.94%
Formula
Percentage change = [(835 - 320) / 320] x 100
Subtract the new number by the original number
835 - 320 = 515
515 ÷ 320 = 1.609375
1.609375 x 100 = 160.94%