27.56% is the change from 664 to 847
Calculation steps:
[( 847 - 664 ) ÷ 664] x 100 = 27.56%
Formula
Percentage change = [(847 - 664) / 664] x 100
Subtract the new number by the original number
847 - 664 = 183
183 ÷ 664 = 0.2756024096385542
0.2756024096385542 x 100 = 27.56%