53.75% is the change from 506 to 778
Calculation steps:
[( 778 - 506 ) ÷ 506] x 100 = 53.75%
Formula
Percentage change = [(778 - 506) / 506] x 100
Subtract the new number by the original number
778 - 506 = 272
272 ÷ 506 = 0.5375494071146245
0.5375494071146245 x 100 = 53.75%