-65.03% is the change from 918 to 321
Calculation steps:
[( 321 - 918 ) ÷ 918] x 100 = -65.03%
Formula
Percentage change = [(321 - 918) / 918] x 100
Subtract the new number by the original number
321 - 918 = -597
-597 ÷ 918 = -0.6503267973856209
-0.6503267973856209 x 100 = -65.03%