50.79% is the change from 508 to 766
Calculation steps:
[( 766 - 508 ) ÷ 508] x 100 = 50.79%
Formula
Percentage change = [(766 - 508) / 508] x 100
Subtract the new number by the original number
766 - 508 = 258
258 ÷ 508 = 0.5078740157480315
0.5078740157480315 x 100 = 50.79%