26.05% is the change from 664 to 837
Calculation steps:
[( 837 - 664 ) ÷ 664] x 100 = 26.05%
Formula
Percentage change = [(837 - 664) / 664] x 100
Subtract the new number by the original number
837 - 664 = 173
173 ÷ 664 = 0.2605421686746988
0.2605421686746988 x 100 = 26.05%