216.45% is the change from 310 to 981
Calculation steps:
[( 981 - 310 ) ÷ 310] x 100 = 216.45%
Formula
Percentage change = [(981 - 310) / 310] x 100
Subtract the new number by the original number
981 - 310 = 671
671 ÷ 310 = 2.164516129032258
2.164516129032258 x 100 = 216.45%