-48.59% is the change from 603 to 310
Calculation steps:
[( 310 - 603 ) ÷ 603] x 100 = -48.59%
Formula
Percentage change = [(310 - 603) / 603] x 100
Subtract the new number by the original number
310 - 603 = -293
-293 ÷ 603 = -0.4859038142620232
-0.4859038142620232 x 100 = -48.59%