191.43% is the change from 210 to 612
Calculation steps:
[( 612 - 210 ) ÷ 210] x 100 = 191.43%
Formula
Percentage change = [(612 - 210) / 210] x 100
Subtract the new number by the original number
612 - 210 = 402
402 ÷ 210 = 1.9142857142857144
1.9142857142857144 x 100 = 191.43%