-3.23% is the change from 402 to 389
Calculation steps:
[( 389 - 402 ) ÷ 402] x 100 = -3.23%
Formula
Percentage change = [(389 - 402) / 402] x 100
Subtract the new number by the original number
389 - 402 = -13
-13 ÷ 402 = -0.03233830845771144
-0.03233830845771144 x 100 = -3.23%