-40.11% is the change from 526 to 315
Calculation steps:
[( 315 - 526 ) ÷ 526] x 100 = -40.11%
Formula
Percentage change = [(315 - 526) / 526] x 100
Subtract the new number by the original number
315 - 526 = -211
-211 ÷ 526 = -0.4011406844106464
-0.4011406844106464 x 100 = -40.11%