-6.25% is the change from 304 to 285
Calculation steps:
[( 285 - 304 ) ÷ 304] x 100 = -6.25%
Formula
Percentage change = [(285 - 304) / 304] x 100
Subtract the new number by the original number
285 - 304 = -19
-19 ÷ 304 = -0.0625
-0.0625 x 100 = -6.25%