-75.51% is the change from 49 to 12
Calculation steps:
[( 12 - 49 ) ÷ 49] x 100 = -75.51%
Formula
Percentage change = [(12 - 49) / 49] x 100
Subtract the new number by the original number
12 - 49 = -37
-37 ÷ 49 = -0.7551020408163265
-0.7551020408163265 x 100 = -75.51%