-27.91% is the change from 43 to 31
Calculation steps:
[( 31 - 43 ) ÷ 43] x 100 = -27.91%
Formula
Percentage change = [(31 - 43) / 43] x 100
Subtract the new number by the original number
31 - 43 = -12
-12 ÷ 43 = -0.27906976744186046
-0.27906976744186046 x 100 = -27.91%