19.12% is the change from 816 to 972
Calculation steps:
[( 972 - 816 ) ÷ 816] x 100 = 19.12%
Formula
Percentage change = [(972 - 816) / 816] x 100
Subtract the new number by the original number
972 - 816 = 156
156 ÷ 816 = 0.19117647058823528
0.19117647058823528 x 100 = 19.12%