3452.38% is the change from 21 to 746
Calculation steps:
[( 746 - 21 ) ÷ 21] x 100 = 3452.38%
Formula
Percentage change = [(746 - 21) / 21] x 100
Subtract the new number by the original number
746 - 21 = 725
725 ÷ 21 = 34.523809523809526
34.523809523809526 x 100 = 3452.38%