20.75% is the change from 506 to 611
Calculation steps:
[( 611 - 506 ) ÷ 506] x 100 = 20.75%
Formula
Percentage change = [(611 - 506) / 506] x 100
Subtract the new number by the original number
611 - 506 = 105
105 ÷ 506 = 0.2075098814229249
0.2075098814229249 x 100 = 20.75%