-52.94% is the change from 51 to 24
Calculation steps:
[( 24 - 51 ) ÷ 51] x 100 = -52.94%
Formula
Percentage change = [(24 - 51) / 51] x 100
Subtract the new number by the original number
24 - 51 = -27
-27 ÷ 51 = -0.5294117647058824
-0.5294117647058824 x 100 = -52.94%