-80% is the change from 445 to 89
Calculation steps:
[( 89 - 445 ) ÷ 445] x 100 = -80%
Formula
Percentage change = [(89 - 445) / 445] x 100
Subtract the new number by the original number
89 - 445 = -356
-356 ÷ 445 = -0.8
-0.8 x 100 = -80%
Example