-85.44% is the change from 103 to 15
Calculation steps:
[( 15 - 103 ) ÷ 103] x 100 = -85.44%
Formula
Percentage change = [(15 - 103) / 103] x 100
Subtract the new number by the original number
15 - 103 = -88
-88 ÷ 103 = -0.8543689320388349
-0.8543689320388349 x 100 = -85.44%