1952.38% is the change from 21 to 431
Calculation steps:
[( 431 - 21 ) ÷ 21] x 100 = 1952.38%
Formula
Percentage change = [(431 - 21) / 21] x 100
Subtract the new number by the original number
431 - 21 = 410
410 ÷ 21 = 19.523809523809526
19.523809523809526 x 100 = 1952.38%