-13.2% is the change from 735 to 638
Calculation steps:
[( 638 - 735 ) ÷ 735] x 100 = -13.2%
Formula
Percentage change = [(638 - 735) / 735] x 100
Subtract the new number by the original number
638 - 735 = -97
-97 ÷ 735 = -0.13197278911564625
-0.13197278911564625 x 100 = -13.2%