-31.97% is the change from 951 to 647
Calculation steps:
[( 647 - 951 ) ÷ 951] x 100 = -31.97%
Formula
Percentage change = [(647 - 951) / 951] x 100
Subtract the new number by the original number
647 - 951 = -304
-304 ÷ 951 = -0.3196635120925342
-0.3196635120925342 x 100 = -31.97%