-1.88% is the change from 320 to 314
Calculation steps:
[( 314 - 320 ) ÷ 320] x 100 = -1.88%
Formula
Percentage change = [(314 - 320) / 320] x 100
Subtract the new number by the original number
314 - 320 = -6
-6 ÷ 320 = -0.01875
-0.01875 x 100 = -1.88%
Example