-70.8% is the change from 959 to 280
Calculation steps:
[( 280 - 959 ) ÷ 959] x 100 = -70.8%
Formula
Percentage change = [(280 - 959) / 959] x 100
Subtract the new number by the original number
280 - 959 = -679
-679 ÷ 959 = -0.708029197080292
-0.708029197080292 x 100 = -70.8%