-78.43% is the change from 839 to 181
Calculation steps:
[( 181 - 839 ) ÷ 839] x 100 = -78.43%
Formula
Percentage change = [(181 - 839) / 839] x 100
Subtract the new number by the original number
181 - 839 = -658
-658 ÷ 839 = -0.7842669845053635
-0.7842669845053635 x 100 = -78.43%