-61.7% is the change from 637 to 244
Calculation steps:
[( 244 - 637 ) ÷ 637] x 100 = -61.7%
Formula
Percentage change = [(244 - 637) / 637] x 100
Subtract the new number by the original number
244 - 637 = -393
-393 ÷ 637 = -0.6169544740973313
-0.6169544740973313 x 100 = -61.7%