213.27% is the change from 211 to 661
Calculation steps:
[( 661 - 211 ) ÷ 211] x 100 = 213.27%
Formula
Percentage change = [(661 - 211) / 211] x 100
Subtract the new number by the original number
661 - 211 = 450
450 ÷ 211 = 2.132701421800948
2.132701421800948 x 100 = 213.27%