4390.48% is the change from 21 to 943
Calculation steps:
[( 943 - 21 ) ÷ 21] x 100 = 4390.48%
Formula
Percentage change = [(943 - 21) / 21] x 100
Subtract the new number by the original number
943 - 21 = 922
922 ÷ 21 = 43.904761904761905
43.904761904761905 x 100 = 4390.48%