34.1% is the change from 217 to 291
Calculation steps:
[( 291 - 217 ) ÷ 217] x 100 = 34.1%
Formula
Percentage change = [(291 - 217) / 217] x 100
Subtract the new number by the original number
291 - 217 = 74
74 ÷ 217 = 0.34101382488479265
0.34101382488479265 x 100 = 34.1%