53.74% is the change from 642 to 987
Calculation steps:
[( 987 - 642 ) ÷ 642] x 100 = 53.74%
Formula
Percentage change = [(987 - 642) / 642] x 100
Subtract the new number by the original number
987 - 642 = 345
345 ÷ 642 = 0.5373831775700935
0.5373831775700935 x 100 = 53.74%