73.17% is the change from 123 to 213
Calculation steps:
[( 213 - 123 ) ÷ 123] x 100 = 73.17%
Formula
Percentage change = [(213 - 123) / 123] x 100
Subtract the new number by the original number
213 - 123 = 90
90 ÷ 123 = 0.7317073170731707
0.7317073170731707 x 100 = 73.17%