-66.05% is the change from 919 to 312
Calculation steps:
[( 312 - 919 ) ÷ 919] x 100 = -66.05%
Formula
Percentage change = [(312 - 919) / 919] x 100
Subtract the new number by the original number
312 - 919 = -607
-607 ÷ 919 = -0.6605005440696409
-0.6605005440696409 x 100 = -66.05%