-59.13% is the change from 526 to 215
Calculation steps:
[( 215 - 526 ) ÷ 526] x 100 = -59.13%
Formula
Percentage change = [(215 - 526) / 526] x 100
Subtract the new number by the original number
215 - 526 = -311
-311 ÷ 526 = -0.591254752851711
-0.591254752851711 x 100 = -59.13%