55.45% is the change from 642 to 998
Calculation steps:
[( 998 - 642 ) ÷ 642] x 100 = 55.45%
Formula
Percentage change = [(998 - 642) / 642] x 100
Subtract the new number by the original number
998 - 642 = 356
356 ÷ 642 = 0.5545171339563862
0.5545171339563862 x 100 = 55.45%