-29.23% is the change from 715 to 506
Calculation steps:
[( 506 - 715 ) ÷ 715] x 100 = -29.23%
Formula
Percentage change = [(506 - 715) / 715] x 100
Subtract the new number by the original number
506 - 715 = -209
-209 ÷ 715 = -0.2923076923076923
-0.2923076923076923 x 100 = -29.23%