-76.72% is the change from 915 to 213
Calculation steps:
[( 213 - 915 ) ÷ 915] x 100 = -76.72%
Formula
Percentage change = [(213 - 915) / 915] x 100
Subtract the new number by the original number
213 - 915 = -702
-702 ÷ 915 = -0.7672131147540984
-0.7672131147540984 x 100 = -76.72%