-3.48% is the change from 402 to 388
Calculation steps:
[( 388 - 402 ) ÷ 402] x 100 = -3.48%
Formula
Percentage change = [(388 - 402) / 402] x 100
Subtract the new number by the original number
388 - 402 = -14
-14 ÷ 402 = -0.03482587064676617
-0.03482587064676617 x 100 = -3.48%