-65.79% is the change from 38 to 13
Calculation steps:
[( 13 - 38 ) ÷ 38] x 100 = -65.79%
Formula
Percentage change = [(13 - 38) / 38] x 100
Subtract the new number by the original number
13 - 38 = -25
-25 ÷ 38 = -0.6578947368421053
-0.6578947368421053 x 100 = -65.79%