66.35% is the change from 312 to 519
Calculation steps:
[( 519 - 312 ) ÷ 312] x 100 = 66.35%
Formula
Percentage change = [(519 - 312) / 312] x 100
Subtract the new number by the original number
519 - 312 = 207
207 ÷ 312 = 0.6634615384615384
0.6634615384615384 x 100 = 66.35%