-30.18% is the change from 951 to 664
Calculation steps:
[( 664 - 951 ) ÷ 951] x 100 = -30.18%
Formula
Percentage change = [(664 - 951) / 951] x 100
Subtract the new number by the original number
664 - 951 = -287
-287 ÷ 951 = -0.3017875920084122
-0.3017875920084122 x 100 = -30.18%