-18.09% is the change from 304 to 249
Calculation steps:
[( 249 - 304 ) ÷ 304] x 100 = -18.09%
Formula
Percentage change = [(249 - 304) / 304] x 100
Subtract the new number by the original number
249 - 304 = -55
-55 ÷ 304 = -0.18092105263157895
-0.18092105263157895 x 100 = -18.09%