6.58% is the change from 76 to 81
Calculation steps:
[( 81 - 76 ) ÷ 76] x 100 = 6.58%
Formula
Percentage change = [(81 - 76) / 76] x 100
Subtract the new number by the original number
81 - 76 = 5
5 ÷ 76 = 0.06578947368421052
0.06578947368421052 x 100 = 6.58%