-50.49% is the change from 610 to 302
Calculation steps:
[( 302 - 610 ) ÷ 610] x 100 = -50.49%
Formula
Percentage change = [(302 - 610) / 610] x 100
Subtract the new number by the original number
302 - 610 = -308
-308 ÷ 610 = -0.5049180327868853
-0.5049180327868853 x 100 = -50.49%