3052.38% is the change from 21 to 662
Calculation steps:
[( 662 - 21 ) ÷ 21] x 100 = 3052.38%
Formula
Percentage change = [(662 - 21) / 21] x 100
Subtract the new number by the original number
662 - 21 = 641
641 ÷ 21 = 30.523809523809526
30.523809523809526 x 100 = 3052.38%