-77.25% is the change from 945 to 215
Calculation steps:
[( 215 - 945 ) ÷ 945] x 100 = -77.25%
Formula
Percentage change = [(215 - 945) / 945] x 100
Subtract the new number by the original number
215 - 945 = -730
-730 ÷ 945 = -0.7724867724867724
-0.7724867724867724 x 100 = -77.25%