2.16% is the change from 972 to 993
Calculation steps:
[( 993 - 972 ) ÷ 972] x 100 = 2.16%
Formula
Percentage change = [(993 - 972) / 972] x 100
Subtract the new number by the original number
993 - 972 = 21
21 ÷ 972 = 0.021604938271604937
0.021604938271604937 x 100 = 2.16%