-88.03% is the change from 610 to 73
Calculation steps:
[( 73 - 610 ) ÷ 610] x 100 = -88.03%
Formula
Percentage change = [(73 - 610) / 610] x 100
Subtract the new number by the original number
73 - 610 = -537
-537 ÷ 610 = -0.8803278688524591
-0.8803278688524591 x 100 = -88.03%