-81.24% is the change from 805 to 151
Calculation steps:
[( 151 - 805 ) ÷ 805] x 100 = -81.24%
Formula
Percentage change = [(151 - 805) / 805] x 100
Subtract the new number by the original number
151 - 805 = -654
-654 ÷ 805 = -0.8124223602484472
-0.8124223602484472 x 100 = -81.24%