69.57% is the change from 299 to 507
Calculation steps:
[( 507 - 299 ) ÷ 299] x 100 = 69.57%
Formula
Percentage change = [(507 - 299) / 299] x 100
Subtract the new number by the original number
507 - 299 = 208
208 ÷ 299 = 0.6956521739130435
0.6956521739130435 x 100 = 69.57%