-0.33% is the change from 305 to 304
Calculation steps:
[( 304 - 305 ) ÷ 305] x 100 = -0.33%
Formula
Percentage change = [(304 - 305) / 305] x 100
Subtract the new number by the original number
304 - 305 = -1
-1 ÷ 305 = -0.003278688524590164
-0.003278688524590164 x 100 = -0.33%