-70.86% is the change from 961 to 280
Calculation steps:
[( 280 - 961 ) ÷ 961] x 100 = -70.86%
Formula
Percentage change = [(280 - 961) / 961] x 100
Subtract the new number by the original number
280 - 961 = -681
-681 ÷ 961 = -0.708636836628512
-0.708636836628512 x 100 = -70.86%