37.09% is the change from 666 to 913
Calculation steps:
[( 913 - 666 ) ÷ 666] x 100 = 37.09%
Formula
Percentage change = [(913 - 666) / 666] x 100
Subtract the new number by the original number
913 - 666 = 247
247 ÷ 666 = 0.3708708708708709
0.3708708708708709 x 100 = 37.09%
Example