-30.09% is the change from 688 to 481
Calculation steps:
[( 481 - 688 ) ÷ 688] x 100 = -30.09%
Formula
Percentage change = [(481 - 688) / 688] x 100
Subtract the new number by the original number
481 - 688 = -207
-207 ÷ 688 = -0.3008720930232558
-0.3008720930232558 x 100 = -30.09%