18.93% is the change from 819 to 974
Calculation steps:
[( 974 - 819 ) ÷ 819] x 100 = 18.93%
Formula
Percentage change = [(974 - 819) / 819] x 100
Subtract the new number by the original number
974 - 819 = 155
155 ÷ 819 = 0.18925518925518925
0.18925518925518925 x 100 = 18.93%