-27.29% is the change from 916 to 666
Calculation steps:
[( 666 - 916 ) ÷ 916] x 100 = -27.29%
Formula
Percentage change = [(666 - 916) / 916] x 100
Subtract the new number by the original number
666 - 916 = -250
-250 ÷ 916 = -0.27292576419213976
-0.27292576419213976 x 100 = -27.29%