-89.92% is the change from 605 to 61
Calculation steps:
[( 61 - 605 ) ÷ 605] x 100 = -89.92%
Formula
Percentage change = [(61 - 605) / 605] x 100
Subtract the new number by the original number
61 - 605 = -544
-544 ÷ 605 = -0.8991735537190083
-0.8991735537190083 x 100 = -89.92%