-45.68% is the change from 637 to 346
Calculation steps:
[( 346 - 637 ) ÷ 637] x 100 = -45.68%
Formula
Percentage change = [(346 - 637) / 637] x 100
Subtract the new number by the original number
346 - 637 = -291
-291 ÷ 637 = -0.45682888540031397
-0.45682888540031397 x 100 = -45.68%