-72.09% is the change from 43 to 12
Calculation steps:
[( 12 - 43 ) ÷ 43] x 100 = -72.09%
Formula
Percentage change = [(12 - 43) / 43] x 100
Subtract the new number by the original number
12 - 43 = -31
-31 ÷ 43 = -0.7209302325581395
-0.7209302325581395 x 100 = -72.09%