-57.3% is the change from 637 to 272
Calculation steps:
[( 272 - 637 ) ÷ 637] x 100 = -57.3%
Formula
Percentage change = [(272 - 637) / 637] x 100
Subtract the new number by the original number
272 - 637 = -365
-365 ÷ 637 = -0.5729984301412873
-0.5729984301412873 x 100 = -57.3%