207.83% is the change from 166 to 511
Calculation steps:
[( 511 - 166 ) ÷ 166] x 100 = 207.83%
Formula
Percentage change = [(511 - 166) / 166] x 100
Subtract the new number by the original number
511 - 166 = 345
345 ÷ 166 = 2.0783132530120483
2.0783132530120483 x 100 = 207.83%