15.74% is the change from 216 to 250
Calculation steps:
[( 250 - 216 ) ÷ 216] x 100 = 15.74%
Formula
Percentage change = [(250 - 216) / 216] x 100
Subtract the new number by the original number
250 - 216 = 34
34 ÷ 216 = 0.1574074074074074
0.1574074074074074 x 100 = 15.74%