507.98% is the change from 163 to 991
Calculation steps:
[( 991 - 163 ) ÷ 163] x 100 = 507.98%
Formula
Percentage change = [(991 - 163) / 163] x 100
Subtract the new number by the original number
991 - 163 = 828
828 ÷ 163 = 5.079754601226994
5.079754601226994 x 100 = 507.98%