-13.98% is the change from 644 to 554
Calculation steps:
[( 554 - 644 ) ÷ 644] x 100 = -13.98%
Formula
Percentage change = [(554 - 644) / 644] x 100
Subtract the new number by the original number
554 - 644 = -90
-90 ÷ 644 = -0.13975155279503104
-0.13975155279503104 x 100 = -13.98%