77.35% is the change from 181 to 321
Calculation steps:
[( 321 - 181 ) ÷ 181] x 100 = 77.35%
Formula
Percentage change = [(321 - 181) / 181] x 100
Subtract the new number by the original number
321 - 181 = 140
140 ÷ 181 = 0.7734806629834254
0.7734806629834254 x 100 = 77.35%