-49.02% is the change from 610 to 311
Calculation steps:
[( 311 - 610 ) ÷ 610] x 100 = -49.02%
Formula
Percentage change = [(311 - 610) / 610] x 100
Subtract the new number by the original number
311 - 610 = -299
-299 ÷ 610 = -0.4901639344262295
-0.4901639344262295 x 100 = -49.02%