290.05% is the change from 211 to 823
Calculation steps:
[( 823 - 211 ) ÷ 211] x 100 = 290.05%
Formula
Percentage change = [(823 - 211) / 211] x 100
Subtract the new number by the original number
823 - 211 = 612
612 ÷ 211 = 2.9004739336492893
2.9004739336492893 x 100 = 290.05%