53.65% is the change from 643 to 988
Calculation steps:
[( 988 - 643 ) ÷ 643] x 100 = 53.65%
Formula
Percentage change = [(988 - 643) / 643] x 100
Subtract the new number by the original number
988 - 643 = 345
345 ÷ 643 = 0.536547433903577
0.536547433903577 x 100 = 53.65%