28.33% is the change from 660 to 847
Calculation steps:
[( 847 - 660 ) ÷ 660] x 100 = 28.33%
Formula
Percentage change = [(847 - 660) / 660] x 100
Subtract the new number by the original number
847 - 660 = 187
187 ÷ 660 = 0.2833333333333333
0.2833333333333333 x 100 = 28.33%