64.03% is the change from 392 to 643
Calculation steps:
[( 643 - 392 ) ÷ 392] x 100 = 64.03%
Formula
Percentage change = [(643 - 392) / 392] x 100
Subtract the new number by the original number
643 - 392 = 251
251 ÷ 392 = 0.6403061224489796
0.6403061224489796 x 100 = 64.03%