69.77% is the change from 483 to 820
Calculation steps:
[( 820 - 483 ) ÷ 483] x 100 = 69.77%
Formula
Percentage change = [(820 - 483) / 483] x 100
Subtract the new number by the original number
820 - 483 = 337
337 ÷ 483 = 0.6977225672877847
0.6977225672877847 x 100 = 69.77%