68.75% is the change from 192 to 324
Calculation steps:
[( 324 - 192 ) ÷ 192] x 100 = 68.75%
Formula
Percentage change = [(324 - 192) / 192] x 100
Subtract the new number by the original number
324 - 192 = 132
132 ÷ 192 = 0.6875
0.6875 x 100 = 68.75%