-34.86% is the change from 984 to 641
Calculation steps:
[( 641 - 984 ) ÷ 984] x 100 = -34.86%
Formula
Percentage change = [(641 - 984) / 984] x 100
Subtract the new number by the original number
641 - 984 = -343
-343 ÷ 984 = -0.3485772357723577
-0.3485772357723577 x 100 = -34.86%