-27.59% is the change from 424 to 307
Calculation steps:
[( 307 - 424 ) ÷ 424] x 100 = -27.59%
Formula
Percentage change = [(307 - 424) / 424] x 100
Subtract the new number by the original number
307 - 424 = -117
-117 ÷ 424 = -0.2759433962264151
-0.2759433962264151 x 100 = -27.59%