22.29% is the change from 664 to 812
Calculation steps:
[( 812 - 664 ) ÷ 664] x 100 = 22.29%
Formula
Percentage change = [(812 - 664) / 664] x 100
Subtract the new number by the original number
812 - 664 = 148
148 ÷ 664 = 0.22289156626506024
0.22289156626506024 x 100 = 22.29%