-91.57% is the change from 439 to 37
Calculation steps:
[( 37 - 439 ) ÷ 439] x 100 = -91.57%
Formula
Percentage change = [(37 - 439) / 439] x 100
Subtract the new number by the original number
37 - 439 = -402
-402 ÷ 439 = -0.9157175398633257
-0.9157175398633257 x 100 = -91.57%