-76.01% is the change from 917 to 220
Calculation steps:
[( 220 - 917 ) ÷ 917] x 100 = -76.01%
Formula
Percentage change = [(220 - 917) / 917] x 100
Subtract the new number by the original number
220 - 917 = -697
-697 ÷ 917 = -0.7600872410032715
-0.7600872410032715 x 100 = -76.01%