-49.01% is the change from 304 to 155
Calculation steps:
[( 155 - 304 ) ÷ 304] x 100 = -49.01%
Formula
Percentage change = [(155 - 304) / 304] x 100
Subtract the new number by the original number
155 - 304 = -149
-149 ÷ 304 = -0.4901315789473684
-0.4901315789473684 x 100 = -49.01%