-76.51% is the change from 809 to 190
Calculation steps:
[( 190 - 809 ) ÷ 809] x 100 = -76.51%
Formula
Percentage change = [(190 - 809) / 809] x 100
Subtract the new number by the original number
190 - 809 = -619
-619 ÷ 809 = -0.765142150803461
-0.765142150803461 x 100 = -76.51%