257.62% is the change from 210 to 751
Calculation steps:
[( 751 - 210 ) ÷ 210] x 100 = 257.62%
Formula
Percentage change = [(751 - 210) / 210] x 100
Subtract the new number by the original number
751 - 210 = 541
541 ÷ 210 = 2.5761904761904764
2.5761904761904764 x 100 = 257.62%