50.09% is the change from 545 to 818
Calculation steps:
[( 818 - 545 ) ÷ 545] x 100 = 50.09%
Formula
Percentage change = [(818 - 545) / 545] x 100
Subtract the new number by the original number
818 - 545 = 273
273 ÷ 545 = 0.5009174311926605
0.5009174311926605 x 100 = 50.09%