38.18% is the change from 660 to 912
Calculation steps:
[( 912 - 660 ) ÷ 660] x 100 = 38.18%
Formula
Percentage change = [(912 - 660) / 660] x 100
Subtract the new number by the original number
912 - 660 = 252
252 ÷ 660 = 0.38181818181818183
0.38181818181818183 x 100 = 38.18%