-57.34% is the change from 715 to 305
Calculation steps:
[( 305 - 715 ) ÷ 715] x 100 = -57.34%
Formula
Percentage change = [(305 - 715) / 715] x 100
Subtract the new number by the original number
305 - 715 = -410
-410 ÷ 715 = -0.5734265734265734
-0.5734265734265734 x 100 = -57.34%