-48.21% is the change from 307 to 159
Calculation steps:
[( 159 - 307 ) ÷ 307] x 100 = -48.21%
Formula
Percentage change = [(159 - 307) / 307] x 100
Subtract the new number by the original number
159 - 307 = -148
-148 ÷ 307 = -0.4820846905537459
-0.4820846905537459 x 100 = -48.21%