506.1% is the change from 164 to 994
Calculation steps:
[( 994 - 164 ) ÷ 164] x 100 = 506.1%
Formula
Percentage change = [(994 - 164) / 164] x 100
Subtract the new number by the original number
994 - 164 = 830
830 ÷ 164 = 5.060975609756097
5.060975609756097 x 100 = 506.1%