48.64% is the change from 660 to 981
Calculation steps:
[( 981 - 660 ) ÷ 660] x 100 = 48.64%
Formula
Percentage change = [(981 - 660) / 660] x 100
Subtract the new number by the original number
981 - 660 = 321
321 ÷ 660 = 0.4863636363636364
0.4863636363636364 x 100 = 48.64%