96.65% is the change from 507 to 997
Calculation steps:
[( 997 - 507 ) ÷ 507] x 100 = 96.65%
Formula
Percentage change = [(997 - 507) / 507] x 100
Subtract the new number by the original number
997 - 507 = 490
490 ÷ 507 = 0.9664694280078896
0.9664694280078896 x 100 = 96.65%