-18.87% is the change from 959 to 778
Calculation steps:
[( 778 - 959 ) ÷ 959] x 100 = -18.87%
Formula
Percentage change = [(778 - 959) / 959] x 100
Subtract the new number by the original number
778 - 959 = -181
-181 ÷ 959 = -0.18873826903023982
-0.18873826903023982 x 100 = -18.87%