171.48% is the change from 305 to 828
Calculation steps:
[( 828 - 305 ) ÷ 305] x 100 = 171.48%
Formula
Percentage change = [(828 - 305) / 305] x 100
Subtract the new number by the original number
828 - 305 = 523
523 ÷ 305 = 1.7147540983606557
1.7147540983606557 x 100 = 171.48%