-70.91% is the change from 55 to 16
Calculation steps:
[( 16 - 55 ) ÷ 55] x 100 = -70.91%
Formula
Percentage change = [(16 - 55) / 55] x 100
Subtract the new number by the original number
16 - 55 = -39
-39 ÷ 55 = -0.7090909090909091
-0.7090909090909091 x 100 = -70.91%