998.81% is the change from 84 to 923
Calculation steps:
[( 923 - 84 ) ÷ 84] x 100 = 998.81%
Formula
Percentage change = [(923 - 84) / 84] x 100
Subtract the new number by the original number
923 - 84 = 839
839 ÷ 84 = 9.988095238095237
9.988095238095237 x 100 = 998.81%