18.72% is the change from 545 to 647
Calculation steps:
[( 647 - 545 ) ÷ 545] x 100 = 18.72%
Formula
Percentage change = [(647 - 545) / 545] x 100
Subtract the new number by the original number
647 - 545 = 102
102 ÷ 545 = 0.1871559633027523
0.1871559633027523 x 100 = 18.72%