-49.84% is the change from 307 to 154
Calculation steps:
[( 154 - 307 ) ÷ 307] x 100 = -49.84%
Formula
Percentage change = [(154 - 307) / 307] x 100
Subtract the new number by the original number
154 - 307 = -153
-153 ÷ 307 = -0.498371335504886
-0.498371335504886 x 100 = -49.84%