-65.85% is the change from 814 to 278
Calculation steps:
[( 278 - 814 ) ÷ 814] x 100 = -65.85%
Formula
Percentage change = [(278 - 814) / 814] x 100
Subtract the new number by the original number
278 - 814 = -536
-536 ÷ 814 = -0.6584766584766585
-0.6584766584766585 x 100 = -65.85%