21.81% is the change from 816 to 994
Calculation steps:
[( 994 - 816 ) ÷ 816] x 100 = 21.81%
Formula
Percentage change = [(994 - 816) / 816] x 100
Subtract the new number by the original number
994 - 816 = 178
178 ÷ 816 = 0.2181372549019608
0.2181372549019608 x 100 = 21.81%