-17.61% is the change from 994 to 819
Calculation steps:
[( 819 - 994 ) ÷ 994] x 100 = -17.61%
Formula
Percentage change = [(819 - 994) / 994] x 100
Subtract the new number by the original number
819 - 994 = -175
-175 ÷ 994 = -0.176056338028169
-0.176056338028169 x 100 = -17.61%