-56.92% is the change from 715 to 308
Calculation steps:
[( 308 - 715 ) ÷ 715] x 100 = -56.92%
Formula
Percentage change = [(308 - 715) / 715] x 100
Subtract the new number by the original number
308 - 715 = -407
-407 ÷ 715 = -0.5692307692307692
-0.5692307692307692 x 100 = -56.92%