-69.8% is the change from 927 to 280
Calculation steps:
[( 280 - 927 ) ÷ 927] x 100 = -69.8%
Formula
Percentage change = [(280 - 927) / 927] x 100
Subtract the new number by the original number
280 - 927 = -647
-647 ÷ 927 = -0.697950377562028
-0.697950377562028 x 100 = -69.8%