-16.33% is the change from 796 to 666
Calculation steps:
[( 666 - 796 ) ÷ 796] x 100 = -16.33%
Formula
Percentage change = [(666 - 796) / 796] x 100
Subtract the new number by the original number
666 - 796 = -130
-130 ÷ 796 = -0.16331658291457288
-0.16331658291457288 x 100 = -16.33%
Example