51.62% is the change from 647 to 981
Calculation steps:
[( 981 - 647 ) ÷ 647] x 100 = 51.62%
Formula
Percentage change = [(981 - 647) / 647] x 100
Subtract the new number by the original number
981 - 647 = 334
334 ÷ 647 = 0.5162287480680062
0.5162287480680062 x 100 = 51.62%