The price of BTC 90% off sale on KuCoin Spotlight is as follows:
The price of BTC and KCS are now fixed at the open price of BTC/USDT and KCS/USDT trading pairs on KuCoin at 0:00:00 on September 16, 2019 (UTC+8)
1 BTC = 10308.8 USDT
1 KCS = 1.74571 USDT
Fixed Allocation Per User: 0.075 BTC=10% * 0.075 * 10308.8 USDT = 44.28 KCS
More details here