2052.38% is the change from 21 to 452
Calculation steps:
[( 452 - 21 ) ÷ 21] x 100 = 2052.38%
Formula
Percentage change = [(452 - 21) / 21] x 100
Subtract the new number by the original number
452 - 21 = 431
431 ÷ 21 = 20.523809523809526
20.523809523809526 x 100 = 2052.38%