69.74% is the change from 304 to 516
Calculation steps:
[( 516 - 304 ) ÷ 304] x 100 = 69.74%
Formula
Percentage change = [(516 - 304) / 304] x 100
Subtract the new number by the original number
516 - 304 = 212
212 ÷ 304 = 0.6973684210526315
0.6973684210526315 x 100 = 69.74%