210.98% is the change from 264 to 821
Calculation steps:
[( 821 - 264 ) ÷ 264] x 100 = 210.98%
Formula
Percentage change = [(821 - 264) / 264] x 100
Subtract the new number by the original number
821 - 264 = 557
557 ÷ 264 = 2.109848484848485
2.109848484848485 x 100 = 210.98%