3542.86% is the change from 21 to 765
Calculation steps:
[( 765 - 21 ) ÷ 21] x 100 = 3542.86%
Formula
Percentage change = [(765 - 21) / 21] x 100
Subtract the new number by the original number
765 - 21 = 744
744 ÷ 21 = 35.42857142857143
35.42857142857143 x 100 = 3542.86%