-78.69% is the change from 61 to 13
Calculation steps:
[( 13 - 61 ) ÷ 61] x 100 = -78.69%
Formula
Percentage change = [(13 - 61) / 61] x 100
Subtract the new number by the original number
13 - 61 = -48
-48 ÷ 61 = -0.7868852459016393
-0.7868852459016393 x 100 = -78.69%