-25.49% is the change from 51 to 38
Calculation steps:
[( 38 - 51 ) ÷ 51] x 100 = -25.49%
Formula
Percentage change = [(38 - 51) / 51] x 100
Subtract the new number by the original number
38 - 51 = -13
-13 ÷ 51 = -0.2549019607843137
-0.2549019607843137 x 100 = -25.49%