27.26% is the change from 664 to 845
Calculation steps:
[( 845 - 664 ) ÷ 664] x 100 = 27.26%
Formula
Percentage change = [(845 - 664) / 664] x 100
Subtract the new number by the original number
845 - 664 = 181
181 ÷ 664 = 0.27259036144578314
0.27259036144578314 x 100 = 27.26%