6.33% is the change from 221 to 235
Calculation steps:
[( 235 - 221 ) ÷ 221] x 100 = 6.33%
Formula
Percentage change = [(235 - 221) / 221] x 100
Subtract the new number by the original number
235 - 221 = 14
14 ÷ 221 = 0.06334841628959276
0.06334841628959276 x 100 = 6.33%