-27.53% is the change from 919 to 666
Calculation steps:
[( 666 - 919 ) ÷ 919] x 100 = -27.53%
Formula
Percentage change = [(666 - 919) / 919] x 100
Subtract the new number by the original number
666 - 919 = -253
-253 ÷ 919 = -0.27529923830250275
-0.27529923830250275 x 100 = -27.53%