2.22% is the change from 901 to 921
Calculation steps:
[( 921 - 901 ) ÷ 901] x 100 = 2.22%
Formula
Percentage change = [(921 - 901) / 901] x 100
Subtract the new number by the original number
921 - 901 = 20
20 ÷ 901 = 0.022197558268590455
0.022197558268590455 x 100 = 2.22%