305.71% is the change from 210 to 852
Calculation steps:
[( 852 - 210 ) ÷ 210] x 100 = 305.71%
Formula
Percentage change = [(852 - 210) / 210] x 100
Subtract the new number by the original number
852 - 210 = 642
642 ÷ 210 = 3.057142857142857
3.057142857142857 x 100 = 305.71%