-76.63% is the change from 920 to 215
Calculation steps:
[( 215 - 920 ) ÷ 920] x 100 = -76.63%
Formula
Percentage change = [(215 - 920) / 920] x 100
Subtract the new number by the original number
215 - 920 = -705
-705 ÷ 920 = -0.7663043478260869
-0.7663043478260869 x 100 = -76.63%