18.1% is the change from 823 to 972
Calculation steps:
[( 972 - 823 ) ÷ 823] x 100 = 18.1%
Formula
Percentage change = [(972 - 823) / 823] x 100
Subtract the new number by the original number
972 - 823 = 149
149 ÷ 823 = 0.181044957472661
0.181044957472661 x 100 = 18.1%