-30.63% is the change from 963 to 668
Calculation steps:
[( 668 - 963 ) ÷ 963] x 100 = -30.63%
Formula
Percentage change = [(668 - 963) / 963] x 100
Subtract the new number by the original number
668 - 963 = -295
-295 ÷ 963 = -0.3063343717549325
-0.3063343717549325 x 100 = -30.63%