-30.43% is the change from 897 to 624
Calculation steps:
[( 624 - 897 ) ÷ 897] x 100 = -30.43%
Formula
Percentage change = [(624 - 897) / 897] x 100
Subtract the new number by the original number
624 - 897 = -273
-273 ÷ 897 = -0.30434782608695654
-0.30434782608695654 x 100 = -30.43%