20.66% is the change from 823 to 993
Calculation steps:
[( 993 - 823 ) ÷ 823] x 100 = 20.66%
Formula
Percentage change = [(993 - 823) / 823] x 100
Subtract the new number by the original number
993 - 823 = 170
170 ÷ 823 = 0.2065613608748481
0.2065613608748481 x 100 = 20.66%