475.9% is the change from 83 to 478
Calculation steps:
[( 478 - 83 ) ÷ 83] x 100 = 475.9%
Formula
Percentage change = [(478 - 83) / 83] x 100
Subtract the new number by the original number
478 - 83 = 395
395 ÷ 83 = 4.759036144578313
4.759036144578313 x 100 = 475.9%