-76.34% is the change from 917 to 217
Calculation steps:
[( 217 - 917 ) ÷ 917] x 100 = -76.34%
Formula
Percentage change = [(217 - 917) / 917] x 100
Subtract the new number by the original number
217 - 917 = -700
-700 ÷ 917 = -0.7633587786259542
-0.7633587786259542 x 100 = -76.34%