215.43% is the change from 311 to 981
Calculation steps:
[( 981 - 311 ) ÷ 311] x 100 = 215.43%
Formula
Percentage change = [(981 - 311) / 311] x 100
Subtract the new number by the original number
981 - 311 = 670
670 ÷ 311 = 2.1543408360128615
2.1543408360128615 x 100 = 215.43%