4333.33% is the change from 21 to 931
Calculation steps:
[( 931 - 21 ) ÷ 21] x 100 = 4333.33%
Formula
Percentage change = [(931 - 21) / 21] x 100
Subtract the new number by the original number
931 - 21 = 910
910 ÷ 21 = 43.333333333333336
43.333333333333336 x 100 = 4333.33%