-63.57% is the change from 700 to 255
Calculation steps:
[( 255 - 700 ) ÷ 700] x 100 = -63.57%
Formula
Percentage change = [(255 - 700) / 700] x 100
Subtract the new number by the original number
255 - 700 = -445
-445 ÷ 700 = -0.6357142857142857
-0.6357142857142857 x 100 = -63.57%