-0.51% is the change from 394 to 392
Calculation steps:
[( 392 - 394 ) ÷ 394] x 100 = -0.51%
Formula
Percentage change = [(392 - 394) / 394] x 100
Subtract the new number by the original number
392 - 394 = -2
-2 ÷ 394 = -0.005076142131979695
-0.005076142131979695 x 100 = -0.51%