218.71% is the change from 310 to 988
Calculation steps:
[( 988 - 310 ) ÷ 310] x 100 = 218.71%
Formula
Percentage change = [(988 - 310) / 310] x 100
Subtract the new number by the original number
988 - 310 = 678
678 ÷ 310 = 2.1870967741935483
2.1870967741935483 x 100 = 218.71%