-33% is the change from 988 to 662
Calculation steps:
[( 662 - 988 ) ÷ 988] x 100 = -33%
Formula
Percentage change = [(662 - 988) / 988] x 100
Subtract the new number by the original number
662 - 988 = -326
-326 ÷ 988 = -0.3299595141700405
-0.3299595141700405 x 100 = -33%