70.13% is the change from 298 to 507
Calculation steps:
[( 507 - 298 ) ÷ 298] x 100 = 70.13%
Formula
Percentage change = [(507 - 298) / 298] x 100
Subtract the new number by the original number
507 - 298 = 209
209 ÷ 298 = 0.7013422818791947
0.7013422818791947 x 100 = 70.13%