217.82% is the change from 101 to 321
Calculation steps:
[( 321 - 101 ) ÷ 101] x 100 = 217.82%
Formula
Percentage change = [(321 - 101) / 101] x 100
Subtract the new number by the original number
321 - 101 = 220
220 ÷ 101 = 2.1782178217821784
2.1782178217821784 x 100 = 217.82%