-71.8% is the change from 610 to 172
Calculation steps:
[( 172 - 610 ) ÷ 610] x 100 = -71.8%
Formula
Percentage change = [(172 - 610) / 610] x 100
Subtract the new number by the original number
172 - 610 = -438
-438 ÷ 610 = -0.7180327868852459
-0.7180327868852459 x 100 = -71.8%