206.71% is the change from 164 to 503
Calculation steps:
[( 503 - 164 ) ÷ 164] x 100 = 206.71%
Formula
Percentage change = [(503 - 164) / 164] x 100
Subtract the new number by the original number
503 - 164 = 339
339 ÷ 164 = 2.067073170731707
2.067073170731707 x 100 = 206.71%