-31.43% is the change from 700 to 480
Calculation steps:
[( 480 - 700 ) ÷ 700] x 100 = -31.43%
Formula
Percentage change = [(480 - 700) / 700] x 100
Subtract the new number by the original number
480 - 700 = -220
-220 ÷ 700 = -0.3142857142857143
-0.3142857142857143 x 100 = -31.43%