285.45% is the change from 213 to 821
Calculation steps:
[( 821 - 213 ) ÷ 213] x 100 = 285.45%
Formula
Percentage change = [(821 - 213) / 213] x 100
Subtract the new number by the original number
821 - 213 = 608
608 ÷ 213 = 2.8544600938967135
2.8544600938967135 x 100 = 285.45%