28.61% is the change from 664 to 854
Calculation steps:
[( 854 - 664 ) ÷ 664] x 100 = 28.61%
Formula
Percentage change = [(854 - 664) / 664] x 100
Subtract the new number by the original number
854 - 664 = 190
190 ÷ 664 = 0.286144578313253
0.286144578313253 x 100 = 28.61%