65.92% is the change from 314 to 521
Calculation steps:
[( 521 - 314 ) ÷ 314] x 100 = 65.92%
Formula
Percentage change = [(521 - 314) / 314] x 100
Subtract the new number by the original number
521 - 314 = 207
207 ÷ 314 = 0.6592356687898089
0.6592356687898089 x 100 = 65.92%