4252.38% is the change from 21 to 914
Calculation steps:
[( 914 - 21 ) ÷ 21] x 100 = 4252.38%
Formula
Percentage change = [(914 - 21) / 21] x 100
Subtract the new number by the original number
914 - 21 = 893
893 ÷ 21 = 42.523809523809526
42.523809523809526 x 100 = 4252.38%