37.69% is the change from 666 to 917
Calculation steps:
[( 917 - 666 ) ÷ 666] x 100 = 37.69%
Formula
Percentage change = [(917 - 666) / 666] x 100
Subtract the new number by the original number
917 - 666 = 251
251 ÷ 666 = 0.3768768768768769
0.3768768768768769 x 100 = 37.69%