-64.34% is the change from 715 to 255
Calculation steps:
[( 255 - 715 ) ÷ 715] x 100 = -64.34%
Formula
Percentage change = [(255 - 715) / 715] x 100
Subtract the new number by the original number
255 - 715 = -460
-460 ÷ 715 = -0.6433566433566433
-0.6433566433566433 x 100 = -64.34%