61.31% is the change from 199 to 321
Calculation steps:
[( 321 - 199 ) ÷ 199] x 100 = 61.31%
Formula
Percentage change = [(321 - 199) / 199] x 100
Subtract the new number by the original number
321 - 199 = 122
122 ÷ 199 = 0.6130653266331658
0.6130653266331658 x 100 = 61.31%