-30.96% is the change from 969 to 669
Calculation steps:
[( 669 - 969 ) ÷ 969] x 100 = -30.96%
Formula
Percentage change = [(669 - 969) / 969] x 100
Subtract the new number by the original number
669 - 969 = -300
-300 ÷ 969 = -0.30959752321981426
-0.30959752321981426 x 100 = -30.96%