-89.34% is the change from 122 to 13
Calculation steps:
[( 13 - 122 ) ÷ 122] x 100 = -89.34%
Formula
Percentage change = [(13 - 122) / 122] x 100
Subtract the new number by the original number
13 - 122 = -109
-109 ÷ 122 = -0.8934426229508197
-0.8934426229508197 x 100 = -89.34%