-66.87% is the change from 655 to 217
Calculation steps:
[( 217 - 655 ) ÷ 655] x 100 = -66.87%
Formula
Percentage change = [(217 - 655) / 655] x 100
Subtract the new number by the original number
217 - 655 = -438
-438 ÷ 655 = -0.6687022900763359
-0.6687022900763359 x 100 = -66.87%