-63.62% is the change from 624 to 227
Calculation steps:
[( 227 - 624 ) ÷ 624] x 100 = -63.62%
Formula
Percentage change = [(227 - 624) / 624] x 100
Subtract the new number by the original number
227 - 624 = -397
-397 ÷ 624 = -0.6362179487179487
-0.6362179487179487 x 100 = -63.62%