-77.24% is the change from 391 to 89
Calculation steps:
[( 89 - 391 ) ÷ 391] x 100 = -77.24%
Formula
Percentage change = [(89 - 391) / 391] x 100
Subtract the new number by the original number
89 - 391 = -302
-302 ÷ 391 = -0.7723785166240409
-0.7723785166240409 x 100 = -77.24%