-30.49% is the change from 715 to 497
Calculation steps:
[( 497 - 715 ) ÷ 715] x 100 = -30.49%
Formula
Percentage change = [(497 - 715) / 715] x 100
Subtract the new number by the original number
497 - 715 = -218
-218 ÷ 715 = -0.3048951048951049
-0.3048951048951049 x 100 = -30.49%