18.44% is the change from 819 to 970
Calculation steps:
[( 970 - 819 ) ÷ 819] x 100 = 18.44%
Formula
Percentage change = [(970 - 819) / 819] x 100
Subtract the new number by the original number
970 - 819 = 151
151 ÷ 819 = 0.18437118437118438
0.18437118437118438 x 100 = 18.44%