-13.43% is the change from 767 to 664
Calculation steps:
[( 664 - 767 ) ÷ 767] x 100 = -13.43%
Formula
Percentage change = [(664 - 767) / 767] x 100
Subtract the new number by the original number
664 - 767 = -103
-103 ÷ 767 = -0.13428943937418514
-0.13428943937418514 x 100 = -13.43%