1923.81% is the change from 21 to 425
Calculation steps:
[( 425 - 21 ) ÷ 21] x 100 = 1923.81%
Formula
Percentage change = [(425 - 21) / 21] x 100
Subtract the new number by the original number
425 - 21 = 404
404 ÷ 21 = 19.238095238095237
19.238095238095237 x 100 = 1923.81%