-11.49% is the change from 731 to 647
Calculation steps:
[( 647 - 731 ) ÷ 731] x 100 = -11.49%
Formula
Percentage change = [(647 - 731) / 731] x 100
Subtract the new number by the original number
647 - 731 = -84
-84 ÷ 731 = -0.11491108071135431
-0.11491108071135431 x 100 = -11.49%