54.87% is the change from 503 to 779
Calculation steps:
[( 779 - 503 ) ÷ 503] x 100 = 54.87%
Formula
Percentage change = [(779 - 503) / 503] x 100
Subtract the new number by the original number
779 - 503 = 276
276 ÷ 503 = 0.5487077534791253
0.5487077534791253 x 100 = 54.87%