64.63% is the change from 311 to 512
Calculation steps:
[( 512 - 311 ) ÷ 311] x 100 = 64.63%
Formula
Percentage change = [(512 - 311) / 311] x 100
Subtract the new number by the original number
512 - 311 = 201
201 ÷ 311 = 0.6463022508038585
0.6463022508038585 x 100 = 64.63%