13.42% is the change from 812 to 921
Calculation steps:
[( 921 - 812 ) ÷ 812] x 100 = 13.42%
Formula
Percentage change = [(921 - 812) / 812] x 100
Subtract the new number by the original number
921 - 812 = 109
109 ÷ 812 = 0.13423645320197045
0.13423645320197045 x 100 = 13.42%