-64.86% is the change from 37 to 13
Calculation steps:
[( 13 - 37 ) ÷ 37] x 100 = -64.86%
Formula
Percentage change = [(13 - 37) / 37] x 100
Subtract the new number by the original number
13 - 37 = -24
-24 ÷ 37 = -0.6486486486486487
-0.6486486486486487 x 100 = -64.86%