-10.07% is the change from 715 to 643
Calculation steps:
[( 643 - 715 ) ÷ 715] x 100 = -10.07%
Formula
Percentage change = [(643 - 715) / 715] x 100
Subtract the new number by the original number
643 - 715 = -72
-72 ÷ 715 = -0.1006993006993007
-0.1006993006993007 x 100 = -10.07%