54.28% is the change from 643 to 992
Calculation steps:
[( 992 - 643 ) ÷ 643] x 100 = 54.28%
Formula
Percentage change = [(992 - 643) / 643] x 100
Subtract the new number by the original number
992 - 643 = 349
349 ÷ 643 = 0.5427682737169518
0.5427682737169518 x 100 = 54.28%