-5.71% is the change from 105 to 99
Calculation steps:
[( 99 - 105 ) ÷ 105] x 100 = -5.71%
Formula
Percentage change = [(99 - 105) / 105] x 100
Subtract the new number by the original number
99 - 105 = -6
-6 ÷ 105 = -0.05714285714285714
-0.05714285714285714 x 100 = -5.71%