-49.17% is the change from 602 to 306
Calculation steps:
[( 306 - 602 ) ÷ 602] x 100 = -49.17%
Formula
Percentage change = [(306 - 602) / 602] x 100
Subtract the new number by the original number
306 - 602 = -296
-296 ÷ 602 = -0.49169435215946844
-0.49169435215946844 x 100 = -49.17%