6.58% is the change from 228 to 243
Calculation steps:
[( 243 - 228 ) ÷ 228] x 100 = 6.58%
Formula
Percentage change = [(243 - 228) / 228] x 100
Subtract the new number by the original number
243 - 228 = 15
15 ÷ 228 = 0.06578947368421052
0.06578947368421052 x 100 = 6.58%