-56.83% is the change from 637 to 275
Calculation steps:
[( 275 - 637 ) ÷ 637] x 100 = -56.83%
Formula
Percentage change = [(275 - 637) / 637] x 100
Subtract the new number by the original number
275 - 637 = -362
-362 ÷ 637 = -0.5682888540031397
-0.5682888540031397 x 100 = -56.83%