18.54% is the change from 561 to 665
Calculation steps:
[( 665 - 561 ) ÷ 561] x 100 = 18.54%
Formula
Percentage change = [(665 - 561) / 561] x 100
Subtract the new number by the original number
665 - 561 = 104
104 ÷ 561 = 0.18538324420677363
0.18538324420677363 x 100 = 18.54%