158.75% is the change from 320 to 828
Calculation steps:
[( 828 - 320 ) ÷ 320] x 100 = 158.75%
Formula
Percentage change = [(828 - 320) / 320] x 100
Subtract the new number by the original number
828 - 320 = 508
508 ÷ 320 = 1.5875
1.5875 x 100 = 158.75%