-17.86% is the change from 627 to 515
Calculation steps:
[( 515 - 627 ) ÷ 627] x 100 = -17.86%
Formula
Percentage change = [(515 - 627) / 627] x 100
Subtract the new number by the original number
515 - 627 = -112
-112 ÷ 627 = -0.17862838915470494
-0.17862838915470494 x 100 = -17.86%