21.51% is the change from 609 to 740
Calculation steps:
[( 740 - 609 ) ÷ 609] x 100 = 21.51%
Formula
Percentage change = [(740 - 609) / 609] x 100
Subtract the new number by the original number
740 - 609 = 131
131 ÷ 609 = 0.21510673234811165
0.21510673234811165 x 100 = 21.51%