-67.22% is the change from 961 to 315
Calculation steps:
[( 315 - 961 ) ÷ 961] x 100 = -67.22%
Formula
Percentage change = [(315 - 961) / 961] x 100
Subtract the new number by the original number
315 - 961 = -646
-646 ÷ 961 = -0.6722164412070759
-0.6722164412070759 x 100 = -67.22%