54.8% is the change from 427 to 661
Calculation steps:
[( 661 - 427 ) ÷ 427] x 100 = 54.8%
Formula
Percentage change = [(661 - 427) / 427] x 100
Subtract the new number by the original number
661 - 427 = 234
234 ÷ 427 = 0.5480093676814989
0.5480093676814989 x 100 = 54.8%