1.21% is the change from 912 to 923
Calculation steps:
[( 923 - 912 ) ÷ 912] x 100 = 1.21%
Formula
Percentage change = [(923 - 912) / 912] x 100
Subtract the new number by the original number
923 - 912 = 11
11 ÷ 912 = 0.01206140350877193
0.01206140350877193 x 100 = 1.21%