-88.97% is the change from 390 to 43
Calculation steps:
[( 43 - 390 ) ÷ 390] x 100 = -88.97%
Formula
Percentage change = [(43 - 390) / 390] x 100
Subtract the new number by the original number
43 - 390 = -347
-347 ÷ 390 = -0.8897435897435897
-0.8897435897435897 x 100 = -88.97%