-76.79% is the change from 56 to 13
Calculation steps:
[( 13 - 56 ) ÷ 56] x 100 = -76.79%
Formula
Percentage change = [(13 - 56) / 56] x 100
Subtract the new number by the original number
13 - 56 = -43
-43 ÷ 56 = -0.7678571428571429
-0.7678571428571429 x 100 = -76.79%