-80.29% is the change from 959 to 189
Calculation steps:
[( 189 - 959 ) ÷ 959] x 100 = -80.29%
Formula
Percentage change = [(189 - 959) / 959] x 100
Subtract the new number by the original number
189 - 959 = -770
-770 ÷ 959 = -0.8029197080291971
-0.8029197080291971 x 100 = -80.29%