-75.93% is the change from 918 to 221
Calculation steps:
[( 221 - 918 ) ÷ 918] x 100 = -75.93%
Formula
Percentage change = [(221 - 918) / 918] x 100
Subtract the new number by the original number
221 - 918 = -697
-697 ÷ 918 = -0.7592592592592593
-0.7592592592592593 x 100 = -75.93%