-66.01% is the change from 918 to 312
Calculation steps:
[( 312 - 918 ) ÷ 918] x 100 = -66.01%
Formula
Percentage change = [(312 - 918) / 918] x 100
Subtract the new number by the original number
312 - 918 = -606
-606 ÷ 918 = -0.6601307189542484
-0.6601307189542484 x 100 = -66.01%