-21.75% is the change from 685 to 536
Calculation steps:
[( 536 - 685 ) ÷ 685] x 100 = -21.75%
Formula
Percentage change = [(536 - 685) / 685] x 100
Subtract the new number by the original number
536 - 685 = -149
-149 ÷ 685 = -0.21751824817518248
-0.21751824817518248 x 100 = -21.75%