4509.52% is the change from 21 to 968
Calculation steps:
[( 968 - 21 ) ÷ 21] x 100 = 4509.52%
Formula
Percentage change = [(968 - 21) / 21] x 100
Subtract the new number by the original number
968 - 21 = 947
947 ÷ 21 = 45.095238095238095
45.095238095238095 x 100 = 4509.52%