-52.43% is the change from 637 to 303
Calculation steps:
[( 303 - 637 ) ÷ 637] x 100 = -52.43%
Formula
Percentage change = [(303 - 637) / 637] x 100
Subtract the new number by the original number
303 - 637 = -334
-334 ÷ 637 = -0.5243328100470958
-0.5243328100470958 x 100 = -52.43%