-80.47% is the change from 814 to 159
Calculation steps:
[( 159 - 814 ) ÷ 814] x 100 = -80.47%
Formula
Percentage change = [(159 - 814) / 814] x 100
Subtract the new number by the original number
159 - 814 = -655
-655 ÷ 814 = -0.8046683046683046
-0.8046683046683046 x 100 = -80.47%