-48.93% is the change from 609 to 311
Calculation steps:
[( 311 - 609 ) ÷ 609] x 100 = -48.93%
Formula
Percentage change = [(311 - 609) / 609] x 100
Subtract the new number by the original number
311 - 609 = -298
-298 ÷ 609 = -0.48932676518883417
-0.48932676518883417 x 100 = -48.93%