4247.62% is the change from 21 to 913
Calculation steps:
[( 913 - 21 ) ÷ 21] x 100 = 4247.62%
Formula
Percentage change = [(913 - 21) / 21] x 100
Subtract the new number by the original number
913 - 21 = 892
892 ÷ 21 = 42.476190476190474
42.476190476190474 x 100 = 4247.62%