-82.08% is the change from 279 to 50
Calculation steps:
[( 50 - 279 ) ÷ 279] x 100 = -82.08%
Formula
Percentage change = [(50 - 279) / 279] x 100
Subtract the new number by the original number
50 - 279 = -229
-229 ÷ 279 = -0.8207885304659498
-0.8207885304659498 x 100 = -82.08%