-36.65% is the change from 161 to 102
Calculation steps:
[( 102 - 161 ) ÷ 161] x 100 = -36.65%
Formula
Percentage change = [(102 - 161) / 161] x 100
Subtract the new number by the original number
102 - 161 = -59
-59 ÷ 161 = -0.36645962732919257
-0.36645962732919257 x 100 = -36.65%