361.11% is the change from 180 to 830
Calculation steps:
[( 830 - 180 ) ÷ 180] x 100 = 361.11%
Formula
Percentage change = [(830 - 180) / 180] x 100
Subtract the new number by the original number
830 - 180 = 650
650 ÷ 180 = 3.611111111111111
3.611111111111111 x 100 = 361.11%