-7.53% is the change from 93 to 86
Calculation steps:
[( 86 - 93 ) ÷ 93] x 100 = -7.53%
Formula
Percentage change = [(86 - 93) / 93] x 100
Subtract the new number by the original number
86 - 93 = -7
-7 ÷ 93 = -0.07526881720430108
-0.07526881720430108 x 100 = -7.53%