-0.65% is the change from 306 to 304
Calculation steps:
[( 304 - 306 ) ÷ 306] x 100 = -0.65%
Formula
Percentage change = [(304 - 306) / 306] x 100
Subtract the new number by the original number
304 - 306 = -2
-2 ÷ 306 = -0.006535947712418301
-0.006535947712418301 x 100 = -0.65%