155.56% is the change from 315 to 805
Calculation steps:
[( 805 - 315 ) ÷ 315] x 100 = 155.56%
Formula
Percentage change = [(805 - 315) / 315] x 100
Subtract the new number by the original number
805 - 315 = 490
490 ÷ 315 = 1.5555555555555556
1.5555555555555556 x 100 = 155.56%