-13.09% is the change from 764 to 664
Calculation steps:
[( 664 - 764 ) ÷ 764] x 100 = -13.09%
Formula
Percentage change = [(664 - 764) / 764] x 100
Subtract the new number by the original number
664 - 764 = -100
-100 ÷ 764 = -0.13089005235602094
-0.13089005235602094 x 100 = -13.09%