-81.05% is the change from 797 to 151
Calculation steps:
[( 151 - 797 ) ÷ 797] x 100 = -81.05%
Formula
Percentage change = [(151 - 797) / 797] x 100
Subtract the new number by the original number
151 - 797 = -646
-646 ÷ 797 = -0.8105395232120451
-0.8105395232120451 x 100 = -81.05%