-27.72% is the change from 938 to 678
Calculation steps:
[( 678 - 938 ) ÷ 938] x 100 = -27.72%
Formula
Percentage change = [(678 - 938) / 938] x 100
Subtract the new number by the original number
678 - 938 = -260
-260 ÷ 938 = -0.2771855010660981
-0.2771855010660981 x 100 = -27.72%