145.04% is the change from 131 to 321
Calculation steps:
[( 321 - 131 ) ÷ 131] x 100 = 145.04%
Formula
Percentage change = [(321 - 131) / 131] x 100
Subtract the new number by the original number
321 - 131 = 190
190 ÷ 131 = 1.450381679389313
1.450381679389313 x 100 = 145.04%