213.73% is the change from 102 to 320
Calculation steps:
[( 320 - 102 ) ÷ 102] x 100 = 213.73%
Formula
Percentage change = [(320 - 102) / 102] x 100
Subtract the new number by the original number
320 - 102 = 218
218 ÷ 102 = 2.1372549019607843
2.1372549019607843 x 100 = 213.73%