-82.56% is the change from 665 to 116
Calculation steps:
[( 116 - 665 ) ÷ 665] x 100 = -82.56%
Formula
Percentage change = [(116 - 665) / 665] x 100
Subtract the new number by the original number
116 - 665 = -549
-549 ÷ 665 = -0.825563909774436
-0.825563909774436 x 100 = -82.56%