-29.94% is the change from 678 to 475
Calculation steps:
[( 475 - 678 ) ÷ 678] x 100 = -29.94%
Formula
Percentage change = [(475 - 678) / 678] x 100
Subtract the new number by the original number
475 - 678 = -203
-203 ÷ 678 = -0.2994100294985251
-0.2994100294985251 x 100 = -29.94%