-74.59% is the change from 610 to 155
Calculation steps:
[( 155 - 610 ) ÷ 610] x 100 = -74.59%
Formula
Percentage change = [(155 - 610) / 610] x 100
Subtract the new number by the original number
155 - 610 = -455
-455 ÷ 610 = -0.7459016393442623
-0.7459016393442623 x 100 = -74.59%