-79.24% is the change from 766 to 159
Calculation steps:
[( 159 - 766 ) ÷ 766] x 100 = -79.24%
Formula
Percentage change = [(159 - 766) / 766] x 100
Subtract the new number by the original number
159 - 766 = -607
-607 ÷ 766 = -0.7924281984334204
-0.7924281984334204 x 100 = -79.24%