4.65% is the change from 86 to 90
Calculation steps:
[( 90 - 86 ) ÷ 86] x 100 = 4.65%
Formula
Percentage change = [(90 - 86) / 86] x 100
Subtract the new number by the original number
90 - 86 = 4
4 ÷ 86 = 0.046511627906976744
0.046511627906976744 x 100 = 4.65%