-86.45% is the change from 605 to 82
Calculation steps:
[( 82 - 605 ) ÷ 605] x 100 = -86.45%
Formula
Percentage change = [(82 - 605) / 605] x 100
Subtract the new number by the original number
82 - 605 = -523
-523 ÷ 605 = -0.8644628099173554
-0.8644628099173554 x 100 = -86.45%