6.12% is the change from 931 to 988
Calculation steps:
[( 988 - 931 ) ÷ 931] x 100 = 6.12%
Formula
Percentage change = [(988 - 931) / 931] x 100
Subtract the new number by the original number
988 - 931 = 57
57 ÷ 931 = 0.061224489795918366
0.061224489795918366 x 100 = 6.12%