-79.73% is the change from 439 to 89
Calculation steps:
[( 89 - 439 ) ÷ 439] x 100 = -79.73%
Formula
Percentage change = [(89 - 439) / 439] x 100
Subtract the new number by the original number
89 - 439 = -350
-350 ÷ 439 = -0.7972665148063781
-0.7972665148063781 x 100 = -79.73%