-29.2% is the change from 678 to 480
Calculation steps:
[( 480 - 678 ) ÷ 678] x 100 = -29.2%
Formula
Percentage change = [(480 - 678) / 678] x 100
Subtract the new number by the original number
480 - 678 = -198
-198 ÷ 678 = -0.2920353982300885
-0.2920353982300885 x 100 = -29.2%