264.29% is the change from 210 to 765
Calculation steps:
[( 765 - 210 ) ÷ 210] x 100 = 264.29%
Formula
Percentage change = [(765 - 210) / 210] x 100
Subtract the new number by the original number
765 - 210 = 555
555 ÷ 210 = 2.642857142857143
2.642857142857143 x 100 = 264.29%