39.52% is the change from 291 to 406
Calculation steps:
[( 406 - 291 ) ÷ 291] x 100 = 39.52%
Formula
Percentage change = [(406 - 291) / 291] x 100
Subtract the new number by the original number
406 - 291 = 115
115 ÷ 291 = 0.3951890034364261
0.3951890034364261 x 100 = 39.52%