-4.28% is the change from 304 to 291
Calculation steps:
[( 291 - 304 ) ÷ 304] x 100 = -4.28%
Formula
Percentage change = [(291 - 304) / 304] x 100
Subtract the new number by the original number
291 - 304 = -13
-13 ÷ 304 = -0.04276315789473684
-0.04276315789473684 x 100 = -4.28%