276.47% is the change from 136 to 512
Calculation steps:
[( 512 - 136 ) ÷ 136] x 100 = 276.47%
Formula
Percentage change = [(512 - 136) / 136] x 100
Subtract the new number by the original number
512 - 136 = 376
376 ÷ 136 = 2.764705882352941
2.764705882352941 x 100 = 276.47%