-92.14% is the change from 636 to 50
Calculation steps:
[( 50 - 636 ) ÷ 636] x 100 = -92.14%
Formula
Percentage change = [(50 - 636) / 636] x 100
Subtract the new number by the original number
50 - 636 = -586
-586 ÷ 636 = -0.9213836477987422
-0.9213836477987422 x 100 = -92.14%