91.14% is the change from 508 to 971
Calculation steps:
[( 971 - 508 ) ÷ 508] x 100 = 91.14%
Formula
Percentage change = [(971 - 508) / 508] x 100
Subtract the new number by the original number
971 - 508 = 463
463 ÷ 508 = 0.9114173228346457
0.9114173228346457 x 100 = 91.14%