-76.37% is the change from 821 to 194
Calculation steps:
[( 194 - 821 ) ÷ 821] x 100 = -76.37%
Formula
Percentage change = [(194 - 821) / 821] x 100
Subtract the new number by the original number
194 - 821 = -627
-627 ÷ 821 = -0.7637028014616322
-0.7637028014616322 x 100 = -76.37%