288.21% is the change from 212 to 823
Calculation steps:
[( 823 - 212 ) ÷ 212] x 100 = 288.21%
Formula
Percentage change = [(823 - 212) / 212] x 100
Subtract the new number by the original number
823 - 212 = 611
611 ÷ 212 = 2.8820754716981134
2.8820754716981134 x 100 = 288.21%