-30.24% is the change from 959 to 669
Calculation steps:
[( 669 - 959 ) ÷ 959] x 100 = -30.24%
Formula
Percentage change = [(669 - 959) / 959] x 100
Subtract the new number by the original number
669 - 959 = -290
-290 ÷ 959 = -0.3023983315954119
-0.3023983315954119 x 100 = -30.24%