104.46% is the change from 157 to 321
Calculation steps:
[( 321 - 157 ) ÷ 157] x 100 = 104.46%
Formula
Percentage change = [(321 - 157) / 157] x 100
Subtract the new number by the original number
321 - 157 = 164
164 ÷ 157 = 1.0445859872611465
1.0445859872611465 x 100 = 104.46%