-83.31% is the change from 605 to 101
Calculation steps:
[( 101 - 605 ) ÷ 605] x 100 = -83.31%
Formula
Percentage change = [(101 - 605) / 605] x 100
Subtract the new number by the original number
101 - 605 = -504
-504 ÷ 605 = -0.8330578512396695
-0.8330578512396695 x 100 = -83.31%