-29.43% is the change from 870 to 614
Calculation steps:
[( 614 - 870 ) ÷ 870] x 100 = -29.43%
Formula
Percentage change = [(614 - 870) / 870] x 100
Subtract the new number by the original number
614 - 870 = -256
-256 ÷ 870 = -0.2942528735632184
-0.2942528735632184 x 100 = -29.43%