-19.6% is the change from 959 to 771
Calculation steps:
[( 771 - 959 ) ÷ 959] x 100 = -19.6%
Formula
Percentage change = [(771 - 959) / 959] x 100
Subtract the new number by the original number
771 - 959 = -188
-188 ÷ 959 = -0.19603753910323254
-0.19603753910323254 x 100 = -19.6%