1230.77% is the change from 13 to 173
Calculation steps:
[( 173 - 13 ) ÷ 13] x 100 = 1230.77%
Formula
Percentage change = [(173 - 13) / 13] x 100
Subtract the new number by the original number
173 - 13 = 160
160 ÷ 13 = 12.307692307692308
12.307692307692308 x 100 = 1230.77%