-3.92% is the change from 715 to 687
Calculation steps:
[( 687 - 715 ) ÷ 715] x 100 = -3.92%
Formula
Percentage change = [(687 - 715) / 715] x 100
Subtract the new number by the original number
687 - 715 = -28
-28 ÷ 715 = -0.039160839160839164
-0.039160839160839164 x 100 = -3.92%