-32.5% is the change from 840 to 567
Calculation steps:
[( 567 - 840 ) ÷ 840] x 100 = -32.5%
Formula
Percentage change = [(567 - 840) / 840] x 100
Subtract the new number by the original number
567 - 840 = -273
-273 ÷ 840 = -0.325
-0.325 x 100 = -32.5%