-32.18% is the change from 951 to 645
Calculation steps:
[( 645 - 951 ) ÷ 951] x 100 = -32.18%
Formula
Percentage change = [(645 - 951) / 951] x 100
Subtract the new number by the original number
645 - 951 = -306
-306 ÷ 951 = -0.3217665615141956
-0.3217665615141956 x 100 = -32.18%