42.34% is the change from 666 to 948
Calculation steps:
[( 948 - 666 ) ÷ 666] x 100 = 42.34%
Formula
Percentage change = [(948 - 666) / 666] x 100
Subtract the new number by the original number
948 - 666 = 282
282 ÷ 666 = 0.42342342342342343
0.42342342342342343 x 100 = 42.34%