-62.4% is the change from 657 to 247
Calculation steps:
[( 247 - 657 ) ÷ 657] x 100 = -62.4%
Formula
Percentage change = [(247 - 657) / 657] x 100
Subtract the new number by the original number
247 - 657 = -410
-410 ÷ 657 = -0.624048706240487
-0.624048706240487 x 100 = -62.4%