-86.49% is the change from 111 to 15
Calculation steps:
[( 15 - 111 ) ÷ 111] x 100 = -86.49%
Formula
Percentage change = [(15 - 111) / 111] x 100
Subtract the new number by the original number
15 - 111 = -96
-96 ÷ 111 = -0.8648648648648649
-0.8648648648648649 x 100 = -86.49%