21.63% is the change from 800 to 973
Calculation steps:
[( 973 - 800 ) ÷ 800] x 100 = 21.63%
Formula
Percentage change = [(973 - 800) / 800] x 100
Subtract the new number by the original number
973 - 800 = 173
173 ÷ 800 = 0.21625
0.21625 x 100 = 21.63%