-7.06% is the change from 85 to 79
Calculation steps:
[( 79 - 85 ) ÷ 85] x 100 = -7.06%
Formula
Percentage change = [(79 - 85) / 85] x 100
Subtract the new number by the original number
79 - 85 = -6
-6 ÷ 85 = -0.07058823529411765
-0.07058823529411765 x 100 = -7.06%