-5.11% is the change from 998 to 947
Calculation steps:
[( 947 - 998 ) ÷ 998] x 100 = -5.11%
Formula
Percentage change = [(947 - 998) / 998] x 100
Subtract the new number by the original number
947 - 998 = -51
-51 ÷ 998 = -0.05110220440881764
-0.05110220440881764 x 100 = -5.11%