-92.89% is the change from 717 to 51
Calculation steps:
[( 51 - 717 ) ÷ 717] x 100 = -92.89%
Formula
Percentage change = [(51 - 717) / 717] x 100
Subtract the new number by the original number
51 - 717 = -666
-666 ÷ 717 = -0.9288702928870293
-0.9288702928870293 x 100 = -92.89%