213.87% is the change from 310 to 973
Calculation steps:
[( 973 - 310 ) ÷ 310] x 100 = 213.87%
Formula
Percentage change = [(973 - 310) / 310] x 100
Subtract the new number by the original number
973 - 310 = 663
663 ÷ 310 = 2.138709677419355
2.138709677419355 x 100 = 213.87%