211.9% is the change from 210 to 655
Calculation steps:
[( 655 - 210 ) ÷ 210] x 100 = 211.9%
Formula
Percentage change = [(655 - 210) / 210] x 100
Subtract the new number by the original number
655 - 210 = 445
445 ÷ 210 = 2.119047619047619
2.119047619047619 x 100 = 211.9%