-43.48% is the change from 897 to 507
Calculation steps:
[( 507 - 897 ) ÷ 897] x 100 = -43.48%
Formula
Percentage change = [(507 - 897) / 897] x 100
Subtract the new number by the original number
507 - 897 = -390
-390 ÷ 897 = -0.43478260869565216
-0.43478260869565216 x 100 = -43.48%