-26.09% is the change from 69 to 51
Calculation steps:
[( 51 - 69 ) ÷ 69] x 100 = -26.09%
Formula
Percentage change = [(51 - 69) / 69] x 100
Subtract the new number by the original number
51 - 69 = -18
-18 ÷ 69 = -0.2608695652173913
-0.2608695652173913 x 100 = -26.09%