27.93% is the change from 666 to 852
Calculation steps:
[( 852 - 666 ) ÷ 666] x 100 = 27.93%
Formula
Percentage change = [(852 - 666) / 666] x 100
Subtract the new number by the original number
852 - 666 = 186
186 ÷ 666 = 0.27927927927927926
0.27927927927927926 x 100 = 27.93%