80.12% is the change from 508 to 915
Calculation steps:
[( 915 - 508 ) ÷ 508] x 100 = 80.12%
Formula
Percentage change = [(915 - 508) / 508] x 100
Subtract the new number by the original number
915 - 508 = 407
407 ÷ 508 = 0.8011811023622047
0.8011811023622047 x 100 = 80.12%