217.24% is the change from 261 to 828
Calculation steps:
[( 828 - 261 ) ÷ 261] x 100 = 217.24%
Formula
Percentage change = [(828 - 261) / 261] x 100
Subtract the new number by the original number
828 - 261 = 567
567 ÷ 261 = 2.1724137931034484
2.1724137931034484 x 100 = 217.24%