7.14% is the change from 84 to 90
Calculation steps:
[( 90 - 84 ) ÷ 84] x 100 = 7.14%
Formula
Percentage change = [(90 - 84) / 84] x 100
Subtract the new number by the original number
90 - 84 = 6
6 ÷ 84 = 0.07142857142857142
0.07142857142857142 x 100 = 7.14%