-83.14% is the change from 605 to 102
Calculation steps:
[( 102 - 605 ) ÷ 605] x 100 = -83.14%
Formula
Percentage change = [(102 - 605) / 605] x 100
Subtract the new number by the original number
102 - 605 = -503
-503 ÷ 605 = -0.8314049586776859
-0.8314049586776859 x 100 = -83.14%