86.4% is the change from 522 to 973
Calculation steps:
[( 973 - 522 ) ÷ 522] x 100 = 86.4%
Formula
Percentage change = [(973 - 522) / 522] x 100
Subtract the new number by the original number
973 - 522 = 451
451 ÷ 522 = 0.8639846743295019
0.8639846743295019 x 100 = 86.4%