150.49% is the change from 204 to 511
Calculation steps:
[( 511 - 204 ) ÷ 204] x 100 = 150.49%
Formula
Percentage change = [(511 - 204) / 204] x 100
Subtract the new number by the original number
511 - 204 = 307
307 ÷ 204 = 1.5049019607843137
1.5049019607843137 x 100 = 150.49%