-1.37% is the change from 731 to 721
Calculation steps:
[( 721 - 731 ) ÷ 731] x 100 = -1.37%
Formula
Percentage change = [(721 - 731) / 731] x 100
Subtract the new number by the original number
721 - 731 = -10
-10 ÷ 731 = -0.013679890560875513
-0.013679890560875513 x 100 = -1.37%