-84.3% is the change from 809 to 127
Calculation steps:
[( 127 - 809 ) ÷ 809] x 100 = -84.3%
Formula
Percentage change = [(127 - 809) / 809] x 100
Subtract the new number by the original number
127 - 809 = -682
-682 ÷ 809 = -0.8430160692212608
-0.8430160692212608 x 100 = -84.3%