-16.37% is the change from 794 to 664
Calculation steps:
[( 664 - 794 ) ÷ 794] x 100 = -16.37%
Formula
Percentage change = [(664 - 794) / 794] x 100
Subtract the new number by the original number
664 - 794 = -130
-130 ÷ 794 = -0.163727959697733
-0.163727959697733 x 100 = -16.37%