166.32% is the change from 190 to 506
Calculation steps:
[( 506 - 190 ) ÷ 190] x 100 = 166.32%
Formula
Percentage change = [(506 - 190) / 190] x 100
Subtract the new number by the original number
506 - 190 = 316
316 ÷ 190 = 1.6631578947368422
1.6631578947368422 x 100 = 166.32%