17.77% is the change from 816 to 961
Calculation steps:
[( 961 - 816 ) ÷ 816] x 100 = 17.77%
Formula
Percentage change = [(961 - 816) / 816] x 100
Subtract the new number by the original number
961 - 816 = 145
145 ÷ 816 = 0.17769607843137256
0.17769607843137256 x 100 = 17.77%