-11.9% is the change from 731 to 644
Calculation steps:
[( 644 - 731 ) ÷ 731] x 100 = -11.9%
Formula
Percentage change = [(644 - 731) / 731] x 100
Subtract the new number by the original number
644 - 731 = -87
-87 ÷ 731 = -0.11901504787961696
-0.11901504787961696 x 100 = -11.9%