-64.9% is the change from 715 to 251
Calculation steps:
[( 251 - 715 ) ÷ 715] x 100 = -64.9%
Formula
Percentage change = [(251 - 715) / 715] x 100
Subtract the new number by the original number
251 - 715 = -464
-464 ÷ 715 = -0.6489510489510489
-0.6489510489510489 x 100 = -64.9%