215.38% is the change from 312 to 984
Calculation steps:
[( 984 - 312 ) ÷ 312] x 100 = 215.38%
Formula
Percentage change = [(984 - 312) / 312] x 100
Subtract the new number by the original number
984 - 312 = 672
672 ÷ 312 = 2.1538461538461537
2.1538461538461537 x 100 = 215.38%