-21.8% is the change from 610 to 477
Calculation steps:
[( 477 - 610 ) ÷ 610] x 100 = -21.8%
Formula
Percentage change = [(477 - 610) / 610] x 100
Subtract the new number by the original number
477 - 610 = -133
-133 ÷ 610 = -0.2180327868852459
-0.2180327868852459 x 100 = -21.8%