21.37% is the change from 819 to 994
Calculation steps:
[( 994 - 819 ) ÷ 819] x 100 = 21.37%
Formula
Percentage change = [(994 - 819) / 819] x 100
Subtract the new number by the original number
994 - 819 = 175
175 ÷ 819 = 0.21367521367521367
0.21367521367521367 x 100 = 21.37%