87.88% is the change from 66 to 124
Calculation steps:
[( 124 - 66 ) ÷ 66] x 100 = 87.88%
Formula
Percentage change = [(124 - 66) / 66] x 100
Subtract the new number by the original number
124 - 66 = 58
58 ÷ 66 = 0.8787878787878788
0.8787878787878788 x 100 = 87.88%