-31.07% is the change from 959 to 661
Calculation steps:
[( 661 - 959 ) ÷ 959] x 100 = -31.07%
Formula
Percentage change = [(661 - 959) / 959] x 100
Subtract the new number by the original number
661 - 959 = -298
-298 ÷ 959 = -0.310740354535975
-0.310740354535975 x 100 = -31.07%