-29.97% is the change from 951 to 666
Calculation steps:
[( 666 - 951 ) ÷ 951] x 100 = -29.97%
Formula
Percentage change = [(666 - 951) / 951] x 100
Subtract the new number by the original number
666 - 951 = -285
-285 ÷ 951 = -0.2996845425867508
-0.2996845425867508 x 100 = -29.97%