28.03% is the change from 660 to 845
Calculation steps:
[( 845 - 660 ) ÷ 660] x 100 = 28.03%
Formula
Percentage change = [(845 - 660) / 660] x 100
Subtract the new number by the original number
845 - 660 = 185
185 ÷ 660 = 0.2803030303030303
0.2803030303030303 x 100 = 28.03%