291.98% is the change from 212 to 831
Calculation steps:
[( 831 - 212 ) ÷ 212] x 100 = 291.98%
Formula
Percentage change = [(831 - 212) / 212] x 100
Subtract the new number by the original number
831 - 212 = 619
619 ÷ 212 = 2.919811320754717
2.919811320754717 x 100 = 291.98%