21.23% is the change from 664 to 805
Calculation steps:
[( 805 - 664 ) ÷ 664] x 100 = 21.23%
Formula
Percentage change = [(805 - 664) / 664] x 100
Subtract the new number by the original number
805 - 664 = 141
141 ÷ 664 = 0.21234939759036145
0.21234939759036145 x 100 = 21.23%