-66.3% is the change from 641 to 216
Calculation steps:
[( 216 - 641 ) ÷ 641] x 100 = -66.3%
Formula
Percentage change = [(216 - 641) / 641] x 100
Subtract the new number by the original number
216 - 641 = -425
-425 ÷ 641 = -0.6630265210608425
-0.6630265210608425 x 100 = -66.3%