6.36% is the change from 236 to 251
Calculation steps:
[( 251 - 236 ) ÷ 236] x 100 = 6.36%
Formula
Percentage change = [(251 - 236) / 236] x 100
Subtract the new number by the original number
251 - 236 = 15
15 ÷ 236 = 0.0635593220338983
0.0635593220338983 x 100 = 6.36%