-65.76% is the change from 920 to 315
Calculation steps:
[( 315 - 920 ) ÷ 920] x 100 = -65.76%
Formula
Percentage change = [(315 - 920) / 920] x 100
Subtract the new number by the original number
315 - 920 = -605
-605 ÷ 920 = -0.657608695652174
-0.657608695652174 x 100 = -65.76%