3.12% is the change from 963 to 993
Calculation steps:
[( 993 - 963 ) ÷ 963] x 100 = 3.12%
Formula
Percentage change = [(993 - 963) / 963] x 100
Subtract the new number by the original number
993 - 963 = 30
30 ÷ 963 = 0.03115264797507788
0.03115264797507788 x 100 = 3.12%