-98.17% is the change from 109 to 2
Calculation steps:
[( 2 - 109 ) ÷ 109] x 100 = -98.17%
Formula
Percentage change = [(2 - 109) / 109] x 100
Subtract the new number by the original number
2 - 109 = -107
-107 ÷ 109 = -0.981651376146789
-0.981651376146789 x 100 = -98.17%