51.18% is the change from 508 to 768
Calculation steps:
[( 768 - 508 ) ÷ 508] x 100 = 51.18%
Formula
Percentage change = [(768 - 508) / 508] x 100
Subtract the new number by the original number
768 - 508 = 260
260 ÷ 508 = 0.5118110236220472
0.5118110236220472 x 100 = 51.18%