-30.6% is the change from 964 to 669
Calculation steps:
[( 669 - 964 ) ÷ 964] x 100 = -30.6%
Formula
Percentage change = [(669 - 964) / 964] x 100
Subtract the new number by the original number
669 - 964 = -295
-295 ÷ 964 = -0.30601659751037347
-0.30601659751037347 x 100 = -30.6%