-11.98% is the change from 726 to 639
Calculation steps:
[( 639 - 726 ) ÷ 726] x 100 = -11.98%
Formula
Percentage change = [(639 - 726) / 726] x 100
Subtract the new number by the original number
639 - 726 = -87
-87 ÷ 726 = -0.11983471074380166
-0.11983471074380166 x 100 = -11.98%