66.32% is the change from 193 to 321
Calculation steps:
[( 321 - 193 ) ÷ 193] x 100 = 66.32%
Formula
Percentage change = [(321 - 193) / 193] x 100
Subtract the new number by the original number
321 - 193 = 128
128 ÷ 193 = 0.6632124352331606
0.6632124352331606 x 100 = 66.32%