0.99% is the change from 912 to 921
Calculation steps:
[( 921 - 912 ) ÷ 912] x 100 = 0.99%
Formula
Percentage change = [(921 - 912) / 912] x 100
Subtract the new number by the original number
921 - 912 = 9
9 ÷ 912 = 0.009868421052631578
0.009868421052631578 x 100 = 0.99%