-11.89% is the change from 715 to 630
Calculation steps:
[( 630 - 715 ) ÷ 715] x 100 = -11.89%
Formula
Percentage change = [(630 - 715) / 715] x 100
Subtract the new number by the original number
630 - 715 = -85
-85 ÷ 715 = -0.11888111888111888
-0.11888111888111888 x 100 = -11.89%