-86.86% is the change from 624 to 82
Calculation steps:
[( 82 - 624 ) ÷ 624] x 100 = -86.86%
Formula
Percentage change = [(82 - 624) / 624] x 100
Subtract the new number by the original number
82 - 624 = -542
-542 ÷ 624 = -0.8685897435897436
-0.8685897435897436 x 100 = -86.86%