227.62% is the change from 210 to 688
Calculation steps:
[( 688 - 210 ) ÷ 210] x 100 = 227.62%
Formula
Percentage change = [(688 - 210) / 210] x 100
Subtract the new number by the original number
688 - 210 = 478
478 ÷ 210 = 2.276190476190476
2.276190476190476 x 100 = 227.62%