375.71% is the change from 210 to 999
Calculation steps:
[( 999 - 210 ) ÷ 210] x 100 = 375.71%
Formula
Percentage change = [(999 - 210) / 210] x 100
Subtract the new number by the original number
999 - 210 = 789
789 ÷ 210 = 3.757142857142857
3.757142857142857 x 100 = 375.71%