-62.64% is the change from 637 to 238
Calculation steps:
[( 238 - 637 ) ÷ 637] x 100 = -62.64%
Formula
Percentage change = [(238 - 637) / 637] x 100
Subtract the new number by the original number
238 - 637 = -399
-399 ÷ 637 = -0.6263736263736264
-0.6263736263736264 x 100 = -62.64%