-30.98% is the change from 965 to 666
Calculation steps:
[( 666 - 965 ) ÷ 965] x 100 = -30.98%
Formula
Percentage change = [(666 - 965) / 965] x 100
Subtract the new number by the original number
666 - 965 = -299
-299 ÷ 965 = -0.30984455958549223
-0.30984455958549223 x 100 = -30.98%