-30.07% is the change from 951 to 665
Calculation steps:
[( 665 - 951 ) ÷ 951] x 100 = -30.07%
Formula
Percentage change = [(665 - 951) / 951] x 100
Subtract the new number by the original number
665 - 951 = -286
-286 ÷ 951 = -0.3007360672975815
-0.3007360672975815 x 100 = -30.07%