97.96% is the change from 491 to 972
Calculation steps:
[( 972 - 491 ) ÷ 491] x 100 = 97.96%
Formula
Percentage change = [(972 - 491) / 491] x 100
Subtract the new number by the original number
972 - 491 = 481
481 ÷ 491 = 0.9796334012219959
0.9796334012219959 x 100 = 97.96%