3552.38% is the change from 21 to 767
Calculation steps:
[( 767 - 21 ) ÷ 21] x 100 = 3552.38%
Formula
Percentage change = [(767 - 21) / 21] x 100
Subtract the new number by the original number
767 - 21 = 746
746 ÷ 21 = 35.523809523809526
35.523809523809526 x 100 = 3552.38%