47.73% is the change from 660 to 975
Calculation steps:
[( 975 - 660 ) ÷ 660] x 100 = 47.73%
Formula
Percentage change = [(975 - 660) / 660] x 100
Subtract the new number by the original number
975 - 660 = 315
315 ÷ 660 = 0.4772727272727273
0.4772727272727273 x 100 = 47.73%