215.06% is the change from 259 to 816
Calculation steps:
[( 816 - 259 ) ÷ 259] x 100 = 215.06%
Formula
Percentage change = [(816 - 259) / 259] x 100
Subtract the new number by the original number
816 - 259 = 557
557 ÷ 259 = 2.1505791505791505
2.1505791505791505 x 100 = 215.06%