23.05% is the change from 668 to 822
Calculation steps:
[( 822 - 668 ) ÷ 668] x 100 = 23.05%
Formula
Percentage change = [(822 - 668) / 668] x 100
Subtract the new number by the original number
822 - 668 = 154
154 ÷ 668 = 0.23053892215568864
0.23053892215568864 x 100 = 23.05%