220.32% is the change from 310 to 993
Calculation steps:
[( 993 - 310 ) ÷ 310] x 100 = 220.32%
Formula
Percentage change = [(993 - 310) / 310] x 100
Subtract the new number by the original number
993 - 310 = 683
683 ÷ 310 = 2.203225806451613
2.203225806451613 x 100 = 220.32%