309.86% is the change from 213 to 873
Calculation steps:
[( 873 - 213 ) ÷ 213] x 100 = 309.86%
Formula
Percentage change = [(873 - 213) / 213] x 100
Subtract the new number by the original number
873 - 213 = 660
660 ÷ 213 = 3.0985915492957745
3.0985915492957745 x 100 = 309.86%